B088 folding keyboard

Folding bluetooth charging keyboard  
Connection mode: Bluetooth connection BT1+BT2+BT3  
Charging interface: USB-C  
Folding size: 142*101*24mm  
Expansion size: 270*101*11.9mm  
Button life: 5 million times  
Operating distance: 10M  
Battery :90mAh rechargeable lithium battery  
Operating voltage: 3.7V  
Key working current: 3mA  
Sleep duration :10 minutes  
Wake up: Press the button to wake up  
Broadcom 5.1 Bluetooth solution  
Material: ABS.  
Key X scissors foot UV screen,