length 19cm
Extend length 75cm
fit for Android 4.2
Effective distance: 10 meters
Operating frequency: 2.4ghz
Working current: 3.5ma
Operating voltage: 3.6v-4.2v
Working temperature: -10 ~ 40
Battery: 60ma
Charging voltage: DC5.0V
Standby time: 3 days
Charging time: 1-2 hours
