1. Bluetooth 5.1

2. ABS plastic

3.

Unfolded size: 304.31 x 98.1 x 9.86 mm

4.

Folded size: 152 x 98.12 x 19.83 mm

5.

Touchpad: 56.4 x 84.55 mm

6. Built-in 140mah high-capacity rechargeable lithium battery, long standby

7. 3-channel Bluetooth connection, Up to 3 Bluetooth devices can be connected at the same time and you can switch between 3 devices at will