Bluetooth Version: 4.0 Enjoy your favorite tunes with this Bluetooth stereo headset There is no need to plug your headphones into your MP3 player or smart phone that eliminates a lot of mess Sub-woofer Ergonomic ear adapters, hours of comfortable listening Delicate Multifunction Key, Crisp Treble, Natural Viola Package: 1 x Earphone 1 x USB Cable 1 x User...