Neckband Bluetooth Headphone Sports

Specifications -Neckband bluetooth stereo headphone -Bluetooth v4.0+ NFC -Class 2:Distance up to 10 meters -Standby time:300 hours Details of  Neckband bluetooth headphone  Specification  - Bluetooth® v4.0+ NFC - Class 2: Distance coverage up to 10 meters - AptX, SBC, MP3 and AAC decoder support - Charging time: 3 hours       - Music playing / Talk time:≥10 hours- Standby time: 300 hours- Frequency Band 2.4~2.4835GHz unlicensed ISM band- Sensitivity: 110 dBm at < 0.1% BER- Rechargeable 310 mA/h li-polymer battery- Audio Function 1.CD-Quality,44.1,48KHz16bitstereo 2.Freq.Response:20Hz~20KHz 3.Codec:Subband codec(SBC)- D 3.5mm Jack Features  1.Wearing style and ear buds help provide stability and a comfortable fit 2.Support APTX and AAC(optional).3.Embedded microphone for hands-free conversation from Bluetooth-enabled cell phones. 4.When receives an incoming call, the music will pause automatically. 5.Easy controls for mute, call transfer, voice dial and call answer/end/reject. 6.Support remote control of play/pause, previous/next track, volume up and volume down. 7.Automatically connect to the last connected Bluetooth device. 8.Built-in echo cancellation. 9.Display headphone's battery on the iPhone.10.Micro USB connector charging via AC charger or computer USB port. 11.3.5mm Line in jack allows headset to work without battery.