Awei A847BL neckband headings with high quality sound and Noise Cancelling technology for excellent sound insulation of external noises. With an ergonomic, lightweight design that is perfectly applied, for comfortable long -term use, ideal for your sports and daily external activities. Features: built -in microphone, Bluetooth version: V4.2,
Supports A2DP/ HFP/ HSP/ AVRCP,
Charging Time: 1.5 Hour,
Time of Use: About 4-6 hours,
Waterproof: Yes ipx4,
Frequency: 20Hz-20kHz,
Speaker resistance: 16ohm,
Sensitivity (S.P.L): 110db,
Power plug: Micro USB.