WiWU Wireless Laptop Keyboard 81 keys portable Foldable PC tablet keyboard aluminum alloy keyboard with touch pad

Battery: 180mAh, 2mA/3.7V
Material: Aluminum alloy+ plastic
Chips: Broadcom 3.0
Key: 81
Charging time: 2 hours, working time 80 hours, standby time 2 month
Unit size:35.8*10*0.9cm/ Fold size 17.8*10*1.8cm
Net weight: 208g