Wireless Bluetooth HandFree Sport Stereo Eearphone Headset With Built in Microphone for handsfree calling Built in microphone; take and receive calls without changing headsets. The Nevenoe Wireless Sport Earphones Permits you to stream your digital sound collection from a Bluetooth enabled audio device, without the need for wires. The Wireless Sport Earphones also contain an integrated microphone, allowing you to switch between audio streaming and call handling without eliminating the headset for seamless listening, ideal to be used when working out. Product details - Type: Stereo earphone with Built in Microphone - Built-in microphone, supports hands-free function, conveniently answer or reject calls - Bluetooth VersionJL4.2 - Driver unit: 10mm - Impedance: 32ohm - Battery: Built in rechargeable battery - Charge type: Via Micro USB - Smart Power Off - Working Distance up to 8 meters - Charging time: 2 hours - Function: Bluetooth Calling/Redial/Volume control/Bluetooth play What's in the box 1 x Wireless Earphone