ITEM NAME:Wireless Headphone Bluetooth Running Sports Metal Magnetic Stereo Earhook #JT1 Product Description Description: Wireless Headphone Bluetooth Running Sports Metal Magnetic Earbud Stereo Headset Earhook Earphone Features: 1. The aluminum alloy shell is designed by the strong magnetic adsorption. It can be fixed firmly to the neck when the shell is not used, so as to prevent from winding. 2. It can also connect two devices at the same time, switching at any time, playing games, answering phone. 3. 3 seconds fast matching, compatible with Bluetooth mobile phones and computers and digital devices. Specification: Support protocol discussion: L2CAP/A2DP (AVCTP/AVDTP/AVRCP) HSP/HFP(Handsfreeprofile) Product weight: About 12g Battery capacity: 80mAh Music time: 3-6 hours Standby time: 100 hours Call time: 3-6 hours Charge time: 1.5 hours Operation Manual: 1. Play / pause key: shutdown: separate headphones starting up, automatically enter the pairing state. In the start state: adsorption shutdown. 2. Double click the redial number at the end. 3. Short press playback / pause music. 4. When someone calls, short press the answer calls, long press reject calls. 5. When you call, short press hang the current call and long press go back to the phone. 6. Volume add: short press the next music, long press the volume up. 7. Volume reduction: short press on play, long press volume down. LED lamp: 1. Back state, blue light flash. 2. Pairing state, red and blue alternately flashing. 3. A successful connection, a blue light alweays light. 4. Play music status, blue light 7 seconds slow flash. 5. Voice hints: Boot, shutdown, pairing, connection, low power, redial, maximum volume / volume minimum alarm, low battery voltage 3.3V, shutdown voltage 3V, low voltage alarm is from 3.3V to 3V every 3. seconds once Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for .The aluminum alloy shell is designed by the strong magnetic adsorption. It can be fixed firmly to the neck when the shell is not used, so as to prevent from winding. Included: 1 x Bluetooth Earphone.