GOgroove BlueBar Bluetooth Headset Receiver And High Fidelity Ear Bud Combo. Converts Any Headphones into Bluetooth - Allows Hands-free Calling , Wireless Music Streaming. Works with most Smartphones Features Bluetooth v2.1 with A2DP. Wireless Bluetooth Receiver Turns any pair of headphones into a Bluetooth headset. Take calls and listen to music from your smartphone, tablet and other Bluetooth enabled devices Hands-free microphone, playback controls, and volume adjustment allows access to your mobile device from up to 30 feet away Conveniently packaged with premium Gogroove AudiOHM ergonomic earbuds and includes a USB charging cable Long-lasting, internal, rechargeable battery provides over 8 hours of talk time and 100 hours of standby time ** Includes 3 Year Warranty**