Work with 2*AAA battery
LED for bluetooth connection
Bluetooth V3.0， support Apple system
Signal type:Broadcom ，BCM 2042chip

Specification:
A. Working frequency：2.400GHz-2.483GHz
B .Working distance：10m
C.Battery:7#2*AAA battery
D.Charging time：2 hours，
E.Standby 90 days
F. Working current：!#!lt!*!2mA @ 3V
G. Sleeping current：!#!lt!*!50uA @ 3V
H. Sleeping mode：The keyboard automatically enter sleep mode when you are not using in 20 minutes.
I. Sleeping waking way：To press any key