Descriptions: Compatible with: All Bluetooth devices and mobile phones Color: Black, White,Silver, White with black border Bluetooth Version: V3.0+EDR. Compatible V2.1, V2.1, V1.1 Frequency range: 2.4GHz Transmission power: Class 2 Transmission range: 10 M File Format: Headset and hands free format Channel: Mono Talk time: 3~4 hrs Standby time: 120 hrs Transmission range of up to 10 meters Allows you answer the phone anytime and anywhere This is a mono Bluetooth headset , it can only receive calls Package included: 1 x Bluetooth Headset 1 x USB Cable 1 x Earloop 1 x User Manual More Details: