Unique foldable design offers you a new fashionable experience. One on/off switch activated in the folding mechanism (unfold=on; folded=off). Provide you excellent super bass stereo sound. Allow you to answer the coming call freely and conveniently. Let you enjoy outstanding sound and music anytime and anywhere. Compatible with all Bluetooth enabled mobile phones. Soft cushions offer superb comfort to wear. Support Bluetooth V2.0. Transmission distance: less than 10 meters. Charging time: 3-4 hours. Talking time: up to 8 hours. Standby time: up to 13 days.