Description of Wireless Bluetooth Blue Headphone Stereo Headset Earphone for Samsung iPhone LG Specifications: Bluetooth Version:4.0 EDR Type: Stereo Talk time: up to 10 hours Play time: up to 10 hoursStandby time: up to 360 hours Charging time: less than 2.5 hours Support volume adjusting：long

Description of Wireless Bluetooth Blue Headphone Stereo Headset Earphone for Samsung iPhone LG Specifications: Bluetooth Version:4.0 EDR Type: Stereo Talk time: up to 10 hours Play time: up to 10 hoursStandby time: up to 360 hours Charging time: less than 2.5 hours Support volume adjusting：long press the  & -key