<b>Why YW YUWISS Bluetooth Headset is your best choice?</b><br> <b>☑36-HOUR SUPER LONG BATTERY LIFE</b> which overcome the difficulty of battery shortage during the business trip, driving, meeting or traveling<br> <b>☑ADVANCED BLUETOOTH 4.2 CONNECTIVITY</b> provides quicker, more stable and wider compatibility, and supports connect to 2 devices at the same time<br> <b>☑HASSLE-FREE CONVERSATION & PROMOTE SOUND</b> clarity by enhanced echo cancellation and noise suppression. You can easily handle calls via the multifunctional button on the Bluetooth earphones<br><br> <b>FAQ:</b><br> <b>1. What should I do when the headset cannot be turned on?</b><br> a) Please confirm the earpiece insert the battery completely<br> b) Please charge the battery for more than 5 minutes<br><br> <b>2. What should I do when the headset are unpaired with my devices?</b><br> a) Please try to reboot the headset<br> b) Forge t the headset Bluetooth connection on your device<br> c) Re-enabled the phone Bluetooth<br><br> ****If you have any questions with this headset, welcome to contact with seller to get more supports***<br><br> <b>SPECIFICATIONS:</b> Bluetooth Version: Bluetooth 4.2<br> Bluetooth Profile: HSP、HFP、A2DP、AVRCP<br> Audio Codec: CSC 6.0<br> Bluetooth Chip: CSR8645<br> Maximum Working Range: 33 feet<br> Working Time: 36 hours (Each battery 18 hours)<br> Charging Time: 1-2 hours<br> Standby Time: Up to 720 hours<br> Net Weight: 0.58 oz / 16.4g<br><br> <b>PACKAGE INCLUDED:</b><br> 1 * YW YUWISS Bluetooth Headset<br> 2 * Headset Batteries<br> 3 * Bluetooth Ear Tips<br> 1 * Micro USB Cable<br> 1 * User Manual