Bluetooth Earphones, Wireless Lightweight Noise Cancelling Stereo Sports Headphones.(Dark Black) Compatible with all iPhone products,Samsung Galaxy Note 3, Note 2, S5 S4, S3, S2 Most Android Smart Phones and other Bluetooth-enabled tablets. Upgrade to bluetooth CSR4.0 compare with before HV-803. More power saving. Provide high-fidelity stereo music. Breakthrough traditional play time up to 6-8 hours talking / playing time and 80 hours standby time. Bluetooth battery display when connected with phone.Connect 2 Bluetooth devices at the same time. User-friendly design.Non-slip and Sweat-proof,extremely suitable for running, hiking, or any kind of workout. Unrivalled package,will be a great gift for your friends.