Wireless noise reduction bluetooth headset

Bluetooth version: Bluetooth V4.1
Charging time: 4 hours
Bluetooth protocol: HFP, HSP, A2DP, AVRCP Rated input: 5.0V 1A
Effective distance: 10 meters
Frequency response range: 20Hz-20KHz
Audio decoding: aptx
Sensitivity (SPL): 97dB
Standby time: About 1500h
Nominal impedance: 320
Product accessories: product accessories, airplane plug converter, USB charging cable, 3.5MM audio cable