Product Feature: Talk time: up to 5 hours Standby time: up to 150 hours Bluetooth specification: version 1.2 Bluetooth profile supported: headset and hands free profiles Range of frequency: 2.402ghz -2.480ghz Nominal charging time: within 2 hours Range: up to 10 meters Rechargeable lithium polymer: 150maAH It is a perfect combination of bluetooth headset (single earphone) and Sunglasses. It is compact and fashionable. Stylish appearance and human Design make it necessary for the noble and the celebrity. It makes the communication more convenientand easy-control. Packet content: 100% Brand New 1 xBluetooth Sunglasses 1 XUsb cable Charger 1 XUser manual 1 XHard Carry Case