Qty of key: 100keys

Version: 2.4G+Bluetooth

Solution: Yichip

Battery: 2*AAA

Keycap: dual-color keycap

Dimensions: 400*149*24mm

Weight: 450g±20g

Qty of key: 4keys

Version: 2.4G+Bluetooth

Battery: 1*AA

Dimensions: 107*62*34mm

Weight: 80g±5g