COOPO Bluetooth 4.1 Ultralight Wireless Headset, Noise Canceling and Hands Free with Mic, Earhook Earbuds Headphone Earphone for iPhone, Android and Other Smartphones and Tablets CP-D9(Silver) COOPO JAPAN offers 12-month warranty and friendly customer service. PACKAGE includes: 1 bluetooth headset, 1 usb cable, 1 English user manual, 2 ear-hook, 1 auxiliary earphone, 1 storage bag FUNCTIONS: Bluetooth 4.1 technology provides less delay and connection up to 33 feet away to pair with smartphones, tablets and Bluetooth-enabled devices. Support simultaneous connection to two different devices. MUSIC & TALK: The buttons on the headset allow you to adjust the volume, play/pause, select songs and answer/hang up calls completely effortlessly. CVC noise cancellation technology reduces outside noises, enable clearer microphone sound. BATTERY: Improved energy-saving technology provides playing time up to 4 hours, talk time up to 6 hours or standby time up to 4 days. DESIGN: Ergonomic and flexible in-ear design, soft silicone angled earbuds and the over-ear hook guarantees a firm, secure fit to your ears, enables comfortable wearing without falling out.