diff --git a/hwilib/devices/coldcard.py b/hwilib/devices/coldcard.py
index 7362ce4d3..78b1711d6 100644
--- a/hwilib/devices/coldcard.py
+++ b/hwilib/devices/coldcard.py
@@ -1,7 +1,7 @@
 # Coldcard interaction script
 
 from binascii import b2a_hex
-from ..hwwclient import HardwareWalletClient
+from ..hwwclient import DeviceFeature, HardwareWalletClient, SupportedFeatures
 from ..errors import ActionCanceledError, BadArgumentError, DeviceBusyError, DeviceFailureError, UnavailableActionError, common_err_msgs, handle_errors
 from .ckcc.client import ColdcardDevice, COINKITE_VID, CKCC_PID
 from .ckcc.protocol import CCProtocolPacker, CCBusyError, CCProtoError, CCUserRefused
@@ -36,6 +36,29 @@ def func(*args, **kwargs):
 # This class extends the HardwareWalletClient for ColdCard specific things
 class ColdcardClient(HardwareWalletClient):
 
+    # Setup features
+    features = SupportedFeatures()
+    features.getxpub = DeviceFeature.SUPPORTED
+    features.signmessage = DeviceFeature.SUPPORTED
+    features.setup = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.wipe = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.recover = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.backup = DeviceFeature.SUPPORTED
+    features.sign_p2pkh = DeviceFeature.SUPPORTED
+    features.sign_p2sh_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_coinjoin = DeviceFeature.SUPPORTED
+    features.sign_mixed_segwit = DeviceFeature.SUPPORTED
+    features.display_address = DeviceFeature.SUPPORTED
+
     def __init__(self, path, password=''):
         super(ColdcardClient, self).__init__(path, password)
         # Simulator hard coded pipe socket
@@ -240,7 +263,7 @@ def send_pin(self, pin):
     # Get HWI features for this device
     @classmethod
     def get_features(self):
-        raise NotImplementedError('The Coldcard does not implement this method')
+        return self.features.get_printable_dict()
 
 def enumerate(password=''):
     results = []
diff --git a/hwilib/devices/digitalbitbox.py b/hwilib/devices/digitalbitbox.py
index 2361e8db2..407e80f34 100644
--- a/hwilib/devices/digitalbitbox.py
+++ b/hwilib/devices/digitalbitbox.py
@@ -14,7 +14,7 @@
 import sys
 import time
 
-from ..hwwclient import HardwareWalletClient
+from ..hwwclient import DeviceFeature, HardwareWalletClient, SupportedFeatures
 from ..errors import ActionCanceledError, BadArgumentError, DeviceFailureError, DeviceAlreadyInitError, DEVICE_NOT_INITIALIZED, DeviceNotReadyError, NoPasswordError, UnavailableActionError, common_err_msgs, handle_errors
 from ..serializations import CTransaction, hash256, ser_sig_der, ser_sig_compact, ser_compact_size
 from ..base58 import get_xpub_fingerprint, xpub_main_2_test, get_xpub_fingerprint_hex
@@ -296,6 +296,29 @@ def format_backup_filename(name):
 # This class extends the HardwareWalletClient for Digital Bitbox specific things
 class DigitalbitboxClient(HardwareWalletClient):
 
+    # Setup features
+    features = SupportedFeatures()
+    features.getxpub = DeviceFeature.SUPPORTED
+    features.signmessage = DeviceFeature.SUPPORTED
+    features.setup = DeviceFeature.SUPPORTED
+    features.wipe = DeviceFeature.SUPPORTED
+    features.recover = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.backup = DeviceFeature.SUPPORTED
+    features.sign_p2pkh = DeviceFeature.SUPPORTED
+    features.sign_p2sh_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_bare = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_bare = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_p2sh = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_coinjoin = DeviceFeature.SUPPORTED
+    features.sign_mixed_segwit = DeviceFeature.SUPPORTED
+    features.display_address = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+
     def __init__(self, path, password):
         super(DigitalbitboxClient, self).__init__(path, password)
         if not password:
@@ -581,7 +604,7 @@ def send_pin(self, pin):
     # Get HWI features for this device
     @classmethod
     def get_features(self):
-        raise NotImplementedError('The Digital Bitbox does not implement this method')
+        return self.features.get_printable_dict()
 
 class Digitalbitbox01Client(DigitalbitboxClient):
     def __init__(self, path, password=''):
diff --git a/hwilib/devices/keepkey.py b/hwilib/devices/keepkey.py
index 3c0bd900a..01e2f22c7 100644
--- a/hwilib/devices/keepkey.py
+++ b/hwilib/devices/keepkey.py
@@ -1,6 +1,7 @@
 # KeepKey interaction script
 
 from ..errors import DEVICE_NOT_INITIALIZED, DeviceNotReadyError, common_err_msgs, handle_errors
+from ..hwwclient import DeviceFeature, SupportedFeatures
 from .trezorlib.transport import enumerate_devices, KEEPKEY_VENDOR_IDS
 from .trezor import TrezorClient
 from ..base58 import get_xpub_fingerprint_hex
@@ -8,10 +9,38 @@
 py_enumerate = enumerate # Need to use the enumerate built-in but there's another function already named that
 
 class KeepkeyClient(TrezorClient):
+
+    # Setup features
+    features = SupportedFeatures()
+    features.getxpub = DeviceFeature.SUPPORTED
+    features.signmessage = DeviceFeature.SUPPORTED
+    features.setup = DeviceFeature.SUPPORTED
+    features.wipe = DeviceFeature.SUPPORTED
+    features.recover = DeviceFeature.SUPPORTED
+    features.backup = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_p2pkh = DeviceFeature.SUPPORTED
+    features.sign_p2sh_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_coinjoin = DeviceFeature.SUPPORTED
+    features.sign_mixed_segwit = DeviceFeature.SUPPORTED
+    features.display_address = DeviceFeature.SUPPORTED
+
     def __init__(self, path, password=''):
         super(KeepkeyClient, self).__init__(path, password)
         self.type = 'Keepkey'
 
+    @classmethod
+    def get_features(self):
+        return self.features.get_printable_dict()
+
 def enumerate(password=''):
     results = []
     for dev in enumerate_devices():
diff --git a/hwilib/devices/ledger.py b/hwilib/devices/ledger.py
index 9be54ee7f..ecfb596fa 100644
--- a/hwilib/devices/ledger.py
+++ b/hwilib/devices/ledger.py
@@ -1,6 +1,6 @@
 # Ledger interaction script
 
-from ..hwwclient import HardwareWalletClient
+from ..hwwclient import DeviceFeature, HardwareWalletClient, SupportedFeatures
 from ..errors import ActionCanceledError, BadArgumentError, DeviceConnectionError, DeviceFailureError, UnavailableActionError, common_err_msgs, handle_errors
 from .btchip.bitcoinTransaction import bitcoinTransaction
 from .btchip.btchip import btchip
@@ -72,6 +72,29 @@ def func(*args, **kwargs):
 # This class extends the HardwareWalletClient for Ledger Nano S and Nano X specific things
 class LedgerClient(HardwareWalletClient):
 
+    # Setup features
+    features = SupportedFeatures()
+    features.getxpub = DeviceFeature.SUPPORTED
+    features.signmessage = DeviceFeature.SUPPORTED
+    features.setup = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.wipe = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.recover = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.backup = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_p2pkh = DeviceFeature.SUPPORTED
+    features.sign_p2sh_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_bare = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_bare = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_p2sh = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_arbitrary_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_coinjoin = DeviceFeature.SUPPORTED
+    features.sign_mixed_segwit = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.display_address = DeviceFeature.SUPPORTED
+
     def __init__(self, path, password=''):
         super(LedgerClient, self).__init__(path, password)
         self.type = 'Ledger Nano S and X'
@@ -351,7 +374,7 @@ def send_pin(self, pin):
     # Get HWI features for this device
     @classmethod
     def get_features(self):
-        raise NotImplementedError('The Ledger Nano S and X does not implement this method')
+        return self.features.get_printable_dict()
 
 class LedgerNanoSClient(LedgerClient):
     def __init__(self, path, password=''):
diff --git a/hwilib/devices/trezor.py b/hwilib/devices/trezor.py
index ab0576651..f7bb8708f 100644
--- a/hwilib/devices/trezor.py
+++ b/hwilib/devices/trezor.py
@@ -1,6 +1,6 @@
 # Trezor interaction script
 
-from ..hwwclient import HardwareWalletClient
+from ..hwwclient import DeviceFeature, HardwareWalletClient, SupportedFeatures
 from ..errors import ActionCanceledError, BadArgumentError, DeviceAlreadyInitError, DeviceAlreadyUnlockedError, DeviceConnectionError, DEVICE_NOT_INITIALIZED, DeviceNotReadyError, UnavailableActionError, common_err_msgs, handle_errors
 from .trezorlib.client import TrezorClient as Trezor
 from .trezorlib.debuglink import TrezorClientDebugLink
@@ -432,18 +432,74 @@ def send_pin(self, pin):
     # Get HWI features for this device
     @classmethod
     def get_features(self):
-        raise NotImplementedError('The {} does not implement this method'.format(self.type))
+        raise UnavailableActionError('A specific Trezor model must be specified to get the features')
 
 class Trezor1Client(TrezorClient):
+
+    # Setup features
+    features = SupportedFeatures()
+    features.getxpub = DeviceFeature.SUPPORTED
+    features.signmessage = DeviceFeature.SUPPORTED
+    features.setup = DeviceFeature.SUPPORTED
+    features.wipe = DeviceFeature.SUPPORTED
+    features.recover = DeviceFeature.SUPPORTED
+    features.backup = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_p2pkh = DeviceFeature.SUPPORTED
+    features.sign_p2sh_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_coinjoin = DeviceFeature.SUPPORTED
+    features.sign_mixed_segwit = DeviceFeature.SUPPORTED
+    features.display_address = DeviceFeature.SUPPORTED
+
     def __init__(self, path, password=''):
         super(Trezor1Client, self).__init__(path, password)
         self.type = 'Trezor 1'
 
+    @classmethod
+    def get_features(self):
+        return self.features.get_printable_dict()
+
 class TrezorTClient(TrezorClient):
+
+    # Setup features
+    features = SupportedFeatures()
+    features.getxpub = DeviceFeature.SUPPORTED
+    features.signmessage = DeviceFeature.SUPPORTED
+    features.setup = DeviceFeature.SUPPORTED
+    features.wipe = DeviceFeature.SUPPORTED
+    features.recover = DeviceFeature.SUPPORTED
+    features.backup = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_p2pkh = DeviceFeature.SUPPORTED
+    features.sign_p2sh_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_p2wpkh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2sh_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_p2wsh = DeviceFeature.SUPPORTED
+    features.sign_multi_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_bare = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2sh_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_arbitrary_p2wsh = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.sign_coinjoin = DeviceFeature.SUPPORTED
+    features.sign_mixed_segwit = DeviceFeature.FIRMWARE_NOT_SUPPORTED
+    features.display_address = DeviceFeature.SUPPORTED
+
     def __init__(self, path, password=''):
         super(TrezorTClient, self).__init__(path, password)
         self.type = 'Trezor T'
 
+    @classmethod
+    def get_features(self):
+        return self.features.get_printable_dict()
+
 def enumerate(password=''):
     results = []
     for dev in enumerate_devices():
diff --git a/hwilib/hwwclient.py b/hwilib/hwwclient.py
index 8c934ee10..54bd94d0f 100644
--- a/hwilib/hwwclient.py
+++ b/hwilib/hwwclient.py
@@ -1,3 +1,60 @@
+# General device client class and related constants and enums
+
+from enum import IntEnum
+
+class DeviceFeature(IntEnum):
+    SUPPORTED = 1 # The device supports the feature and so does HWI
+    NOT_SUPPORTED = 2 # The device supports the feature but HWI has not implemented it yet
+    FIRMWARE_NOT_SUPPORTED = 3 # The firmware does not support the feature so HWI cannot
+
+class SupportedFeatures(object):
+
+    def __init__(self):
+        self.getxpub = DeviceFeature.NOT_SUPPORTED
+        self.signmessage = DeviceFeature.NOT_SUPPORTED
+        self.setup = DeviceFeature.NOT_SUPPORTED
+        self.wipe = DeviceFeature.NOT_SUPPORTED
+        self.recover = DeviceFeature.NOT_SUPPORTED
+        self.backup = DeviceFeature.NOT_SUPPORTED
+        self.sign_p2pkh = DeviceFeature.NOT_SUPPORTED
+        self.sign_p2sh_p2wpkh = DeviceFeature.NOT_SUPPORTED
+        self.sign_p2wpkh = DeviceFeature.NOT_SUPPORTED
+        self.sign_multi_p2sh = DeviceFeature.NOT_SUPPORTED
+        self.sign_multi_p2sh_p2wsh = DeviceFeature.NOT_SUPPORTED
+        self.sign_multi_p2wsh = DeviceFeature.NOT_SUPPORTED
+        self.sign_multi_bare = DeviceFeature.NOT_SUPPORTED
+        self.sign_arbitrary_bare = DeviceFeature.NOT_SUPPORTED
+        self.sign_arbitrary_p2sh = DeviceFeature.NOT_SUPPORTED
+        self.sign_arbitrary_p2sh_p2wsh = DeviceFeature.NOT_SUPPORTED
+        self.sign_arbitrary_p2wsh = DeviceFeature.NOT_SUPPORTED
+        self.sign_coinjoin = DeviceFeature.NOT_SUPPORTED
+        self.sign_mixed_segwit = DeviceFeature.NOT_SUPPORTED
+        self.display_address = DeviceFeature.NOT_SUPPORTED
+
+    def get_printable_dict(self):
+        d = {}
+        d['getxpub'] = self.getxpub
+        d['signmessage'] = self.signmessage
+        d['setup'] = self.setup
+        d['wipe'] = self.wipe
+        d['recover'] = self.recover
+        d['backup'] = self.backup
+        d['sign_p2pkh'] = self.sign_p2pkh
+        d['sign_p2sh_p2wpkh'] = self.sign_p2sh_p2wpkh
+        d['sign_p2wpkh'] = self.sign_p2wpkh
+        d['sign_multi_p2sh'] = self.sign_multi_p2sh
+        d['sign_multi_p2sh_p2wsh'] = self.sign_multi_p2sh_p2wsh
+        d['sign_multi_p2wsh'] = self.sign_multi_p2wsh
+        d['sign_multi_bare'] = self.sign_multi_bare
+        d['sign_arbitrary_bare'] = self.sign_arbitrary_bare
+        d['sign_arbitrary_p2sh'] = self.sign_arbitrary_p2sh
+        d['sign_arbitrary_p2sh_p2wsh'] = self.sign_arbitrary_p2sh_p2wsh
+        d['sign_arbitrary_p2wsh'] = self.sign_arbitrary_p2wsh
+        d['sign_coinjoin'] = self.sign_coinjoin
+        d['sign_mixed_segwit'] = self.sign_mixed_segwit
+        d['display_address'] = self.display_address
+        return d
+
 # This is an abstract class that defines all of the methods that each Hardware
 # wallet subclass must implement.
 class HardwareWalletClient(object):