bluetooth 4.1 ,Chipset: CSR8645 Bluetooth Profiles :HFP ,HSP,A2DP,AVRCP, decoder support: APTX, SBC, MP3 and AAC aptX HD audio technology Noise reduction: CVC Version 6.0 ,clear voice capture technology Smart Voice alerts iOS battery status monitor Operating Range: 10m Cable Length: 60cm Standby time: about 175hours Charging Time: about 2 hours Talking Time: 7 hours Net Weight: 16.4g` Color: White & Black Package Include 1 x Sport Bluetooth Headset 1 x Micro USB Charger Cable 4 x Earbuds 4 x Ear-hooks 1 x User Manual