Bluetooth Headphones, MOSCHE Bluetooth 4.1 Wireless Stereo Bluetooth Headsets with Retractable Bluetooth Earbuds with Mic for Cell Phone (Silver) BLUETOOTH RETRACTABLE EARBUDS -- Bluetooth Headsets with retractable wire management keeps you from mass, good for sports and outdoor, really set your hand free. FOLDING FUNCTION -- Bluetooth Headsets becomes small with folding function which can easy carry in your hand bag and pocket. ONE KEY SWITCH FUNCTION -- It is more easy to operate the Bluetooth Headsets with just on key function no need to press and hold the button for 3 seconds. Also with previous and next button to control songs. EXCELLENT MUSIC SOUND and BASS -- Bluetooth Headphones with 6G CVC noise reduction function to help you enjoy high quality music and phone calls everywhere. BLUETOOTH 4.1 VERSION -- With Bluetooth 4.1 and Smart voice promotion keep the phone call's quality like using original cell phone. When there is incoming calls Bluetooth headset will vibrate to remind you. The headphone can work with 2 mobile phones.