Spec:Item Type: Mini KeypadMaterial: AcrylicSwitch: Blue Switch Key Type: 12 Key Mechanical Keyboard + 2 x Knob (Knob Can Be Used As a Key to Press)Applicable Equipment: ComputerBattery Type: Inbuilt 1200mAh Lithium Ion Battery (Battery Included)How to Use:Wired connection: Plug and playBT connection: Press the power to turn on, and BT pairing is activated at the same time, connect and use. MILLER LPR-100 SERIES FILTERS NUISANCE, OV RELIEF, P100, 1/PAIR 【USB/BT Connection Options】: Designed to fit your needs, this Midi Controller supports both USB and Bluetooth connections. 【Programmable】: Unveil your creativity with this Programmable Keypad that can be personally configured to your liking. Buy Macro Pad Macro Keyboard Programmable Keypad Customized 12-Key Mini Mechanical Gaming Keyboard One Handed Keyboard RGB OSU Micro Keyboard Macropad... Macro Pad Diyeeni 12 Keys Macro Mechanical Keypad, Programmable Keyboard With 2 Knobs, Portable One Handed Fully Programmable Keypad, Gaming Keyboard, USB Wired, Saving Space Mpk Mini Package List:1 xMini Keypad1 x USB Cable4 x Anti Slip Pad1 x User Manual Macro Keyboard 12 Key + 2 Knob Programmable Hotswap One-handed Mechanical Keypad Choose your method of connectivity based on your preference, ensuring smooth and hassle- use. 【Portable and Convenient】: Powered by a 1200mah lithium-ion battery, this Midi Controller presents the ideal balance between durability and portability. It's for those that need a device on-the-. Features 12 keys and 2 knobs, providing the flexibility to customize and your workflow or gaming experience.