This awesome mini wireless earphone will be a wise choice for you to look for headset both fashionable and . The version of 4.1, enjoy music without missing any calls. Excellent sound quality, distance of 10 meters. for driving, working, meeting, play games etc. Features - Color: Black. - Material: Plastic. - Size: About 10 X 4 X 1cm. - version: 4.1 + EDR. - Frequency: 2.4 ~ 2.48G Hz. - Transmission distance: Up to 10m. - Communication protocol: HFP, , A2PDP, AVRCP. - Frequency response: 2.4GHz. - Microphone sensitivity: . - Power: Built-in rechargeable Li-ion battery. - Charging voltage: 5V. - Charging time: 2 hours. - Conversation time: 5 ~ 6 hours. - Standby time: 160 hours. - The version of 4.1, enjoy music without missing any calls. - Excellent sound quality, distance of 10 meters. - Ergonomic design for comfortable wearing to relieve fatigue and keeping your earphones stay in place securely. - for driving, working, meeting, play games etc. - Let you the fun of wireless in the game, in is convenient and quick. Package list: 1 x Headphone