Multifunctional 28-key Numeric Keypad 28 Keys Rechargeable Bluetooth Wireless Numeric Keyboard

Broadcom Bluetooth 3.0 chip imported from the United States, deductible for passwords, multi-system compatibility, scissor foot structure design, comfortable feel.

Bluetooth solution: Broadcom 20730 chip Bluetooth module

Bluetooth protocol:Bluetooth:3.0

Working distance:Barrier-free: about 10 meters

Working voltage:DC 3.7 V

Battery capacity:350mAh

Working current:<5mA

Continuous working time:70H (calculated by 350mAh battery)

Standby time:90 days

Sleep current:about 50uA

Charging current:<150mA

Charging voltage:DC 4.7~5.2v



Sleep state

The keyboard goes to sleep after 20 minutes of inactivity



Status display LED

1.LED is blue light:

2.The blue light will be on when power on, and the blue light will flash slowly 1 time after 1S and then turn off

3.Press and hold the pairing button for 3 seconds, the blue light flashes quickly to enter the pairing state, the device does not need to enter the password, just click the device connection

4.Low voltage indication: the blue light flashes in the working state as low voltage indication