Imarku&reg; Bluetooth Headphones Sport Running Wireless Headset earbuds with mic CSR 4.0 Compatible with Apple Iphone 6 / 6s Plus Android Devices and Tablets(Black) 100% Brand New and High Quality Bluetooth Version CSR 4.0, professional sound quality can be provided Strong Wireless Signal: you can enjoy skip-free music in a 10-meter working distance, even if use your music devices left/right side, above/below waist. Unique neck-strap design for easy carrying, Ultra-light weight for all day comfort. Stereo wireless bluetooth headphone for Exercise Running Climbing, Driving, Skating, Camping, Fishing and other Outdoor Sports. And built-in extra-long battery allows up to 6-hour talking/playing time and 100-hour standby. Connect with devices at the same time Universally compatible with most Bluetooth-enabled phones---Apple/iphone6 iphone6 plus/ ipad/ LG/ MOTO X/Galaxy S6 /Note4/ SONY Z4/ Z3