Working range: 10 meters
Built in lithium battery: 500mAh
Speaker size: 40mmS/N: ≥90db
Noise Cancelling S/N: 20db±3db
Noise Cancelling Frequency: 20-500hz Wireless headphone Frequency: 20-20KHz Handsfree
Built in microphone
Supports Aux in
Working time: up to 30 hours
Standby time: up to 100 hours
Charging time: 3 hours
