GRDE Wireless Sport Bluetooth Headphone for Bluetooth Enabled Devices - Blue Comfortable Wearing: Light weight, in-ear design, high crystal clear stereo sound and strong signal, suitable for those who enjoys music when running jogging riding mountaineering Yogo Simple to Use -- Wide Compatible with Bluetooth 4.1 cellphone within 10 meters (no obstacle) ; Control all functions of your music (volume, sound,pause, song selection) Long Battery Life: With 170mAh batteries, you can have 8 hours playing music , 10 hours talking and 320 hours standby. It needs 2 hours for charging Ultra-comfortable 3 different sizes of earbuds for your option; TPE transparent material; Import CSR8635; Battery alert report; Connect two cellphones at a time; Enger-saving; Strong signal; It is the perfect gift to someone!!! In-built speaker and microphone: Intelligent CVC 6.0 noise reduction, wherever you can talk to someone clearly. Also, it supports Yes or No voice control. Call,Answer and Redial the last number