Features 1、Built-in magnets: You can attach the two headphones together when not using, and wear like a necklace around your neck, a convenient way to carry around when you don't need them. 2、Bluetooth 4.1 technology provides a several-second and stable paring with your Bluetooth enabled device. 3、Built‑in 60mah battery provides about 3 hours of continuous music time, 2 hours of talking time and 160 hours of standby time with a single full charge. 4、With soft rubber earbuds, your ears will never feel pain easily. 5、Clearly and exactly know how much battery left of this headphone while paired for iPhone or for IOS Tablet . Specification Description: Advanced multi-pairing V4.1 technology allows the headset with mic to pair with mobile devices quickly and to stream music and calls with crystal clear sound. You can answer/hang up/reject/redial calls, adjust volume, switch songs, play/pause music through the Bluetooth headphone. Features: Built-in magnets: You can attach the two headphones together when not using, and wear like a necklace around your neck, a convenient way to carry around when you don't need them. Built-in 60mah battery provides about 3 hours of continuous music time, 2 hours of talking time and 160 hours of standby time with a single full charge. Bluetooth 4.1 technology provides a several-second and stable paring with your Bluetooth enabled device. With soft rubber earbuds, your ears will never feel pain easily. Clearly and exactly know how much battery left of this headphone while paired for iPhone or for IOS Tablet. Specifications: Color: Gold, Black (Optional) Package weight: 15g Bluetooth chip and Bluetooth version: csr 4.1 Bluetooth protocol: A2DP AVRCP HFP HSP Battery: 3.7V 60mAh Charging power: 5V / 80mAh Sensitivity: 103db +/- 3dB Impedance: 32Mw Transmission distance: barrier 10m Frequency: 2.4GHZ Talk time: about 2 hours Songs time: about 3 hours Standby time: about 160 hours Function: Play/pause/switch music Adjust volume, Switch Chinese and English voice Report the call number Answer/hang up/reject/redial calls Operation voice prompt Show electric quantity for iOS system Support WeChat, car navigation, QQ voice and other software Instructions: Power On/Off: Long press the power button for 3s Enter Pairing mode: Long press the power button for 5s Volume+/-: Press the volume- / volume- button Switch Chinese and English Voice: Press the power button twice in the state of pairing. Play/ Pause: Press power button Previous Song: Long press the volume- button for 2s Next Song: Long press the volume+ button for 2s Answer / End A Call: Press the power button Reject A Call: Long press the power button Redial Last Number: Double click the power button; then short press the power button to cancel the call. Package List: 1 x Headphone 1 x Manual 1 x Data Cable Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List