Amazon.com: Macally Bluetooth Keyboard with Touchpad for Easy Media Control - Perfect TV Wireless Keyboard with Trackpad for Samsung LG HTPC Mac - Small Wireless Keyboard with Touchpad - Smart TV Keyboard : Electronics
Amazon.com: Bluetooth Keyboard and Mouse Combo, Ultra Slim Rechargeable Wireless Bluetooth Keyboard and Mouse for Android Tablets Smartphones, iOS iPhone,IPad,IPad Pro, Windows (Green) : Electronics
Amazon.com: Macally Small Bluetooth Keyboard for Tablet and Phone - Multi Device Wireless Keyboard for iPhone iPad Android - Rechargeable Bluetooth Tablet Keyboard with Stand - Pink : Electronics
Amazon.com: Logitech K380 Multi-Device Bluetooth Keyboard – Windows, Mac, Chrome OS, Android, iPad, iPhone, Apple TV Compatible – with Flow Cross-Computer Control and Easy-Switch up to 3 Devices – Dark Grey :
Amazon.com: SANWA Foldable Bluetooth Keyboard, Rechargeable Wireless Folding Keypad, Portable & Slim, for Laptop Desktop Computer PC iPad/iPhone Tablet Smartphone, Compatible with MacBook, Windows, Android, iOS : Electronics
The best Android Bluetooth keyboards compatible with multiple OSs
Amazon.com: Fintie 10-Inch Ultrathin (4mm) Wireless Bluetooth Keyboard for iPad 10th Gen 10.9, iPad Air 5/4, iPad 10.2", iPad Air 3rd Gen 10.5"/Air 2/Air, iPad Pro 11/Pro 10.5, iPad 9.7 Inch, White : Electronics
Amazon.com: Macally Backlit Portable Bluetooth Keyboard for iPad Mini/Pro, iPhone, Phone, Kindle Fire, Android - Universal 7 Backlit Colors Tablet Keyboard Mini - Small Bluetooth Wireless Keyboard : Electronics
Amazon.com: Gimibox Foldable Bluetooth Keyboard, Pocket Size Portable Mini BT Wireless Keyboard with Touchpad for Android, Windows, PC, Tablet, with Rechargeable Li-ion Battery-Dark Gray : Electronics
The best Android Bluetooth keyboards compatible with multiple OSs
Amazon.com: iClever BK10 Bluetooth Keyboard, Multi Device Keyboard Rechargeable Bluetooth 5.1 with Number Pad Ergonomic Design Full Size Stable Connection Keyboard for iPad, iPhone, Mac, iOS, Android, Windows : Electronics
Amazon.com: iClever BK10 Bluetooth Keyboard, Multi Device Keyboard Rechargeable Bluetooth 5.1 with Number Pad Ergonomic Design Full Size Stable Connection Keyboard for iPad, iPhone, Mac, iOS, Android, Windows : Electronics