K21 Bluetooth Mechanical Numeric Keypad

SPECIFICATIONS   Operation Style: Mechanical Language: English Hign-concerned Chemical: None Type: 2.4Ghz Wireless Application: Number Keyboard Standard: 19 Keys Style: Gaming Style: For Laptop Certification: none Keycup material: ABS plastic Interface Type: Bluetooth/USB Switches Hot swap: YES Certification: NONE Origin: United States Type: 2.4Ghz Wireless Application: Number Language: English Operation Style: Mechanical Interface Type: Bluetooth-compatible/USB Style: Gaming,For Laptop Switches Hot swap: YES Keycup material: ABS plastic Feature 1: K21 Bluetooth Number Pad Feature 2: Mechanical Numeric Keypad Feature 3: Three-mode Transparent Accounting Numpad Feature 4: Gaming Hot-swappable Keyboard