Material: plastic
Features: 
Radio Frequency: 2.4GHz 
Keyboard Key Number: 78
Useing Time: 100000 times
Transmission Range: 10 meters 
Batteries: 3 x AA batteries (not included)
Supports Windows / Mac OS / Linux / Android
Mouse Auto-Sleep: 2min

Accessories:
1 x Fly mouse
1 x Receiver 
1 x Chinese user manual

Product Dimensions: 20 x 6.5 x 2.5cm, weight: 124g
Package Dimensions: 25.7 x 9.7 x 5cm, weight: 292g