Top Seller Newest Earphone Stereo Sports Bluetooth Headset Headphone for Iphone Samsung HTC (Black) 100% brand new and high quality. Bluetooth version: Version 2.0 Frequency: 2.4GHz Sound track: Stereo Receiving sensitivity: - 80 DBM Launch range: &lt; = 10 m Talk time: Up to 6 Hours Power source: Built-in Li-ion Battery (USB Charging) Charge time: 2 hours