WiWU Wireless Laptop Keyboard 81 keys portable Foldable PC tablet-Grey

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