JIAKE JIAKE® New Version Wireless Bluetooth CSR 4.0 Music Stereo Universal Headset Headphone Vibration Neckband Style for iPhone iPad Mobile Device (Gold) Bluetooth  (Blue, In the Ear)

Attention: If there is any question or any problem about the product or order, please feel free to contact us seller, thank you. Specifications 1.Bluetooth Version: CSR 4.0 2.Frequency range: 2.4GHz-2.48GHz 3.Transmission power: Class2 4.Transmission distance: 10 meters without barrier 5.Talk Time: Up to 10 Hours 6.Standby Time: Up to 15 days 7.Music Play Time: Up to 8 Hours 8.Charging Time: About 2 hours 9.Technical Support Agreement: A2DP/AVRCP/apt-X/HSP/HFP 10.Advanced Multipoint: Yes 11.Connection Vibrate Alert: YES 12.Call Vibrate Alert: YES 13.Buit-in microphone: YES Package includes: 1* Bluetooth headset 1* USB Charging Cable 1* User manual