*Color: Black.Blue.Red.
*Frequency: 2.4GHz spectrum
*Audio impedance: 32 Ohm
*Battery lifespan: 10-13 hours (music play time) 15-20 hours (talking time)
*Battery duration on standby: 350 hours
*Charging time: 3.0 hours
*Charging :micro USB
*Operating range: ≥10 meters