Product Description<br />  Bluetooth specification: 4.1<br /> 100% Brand New.<br /> Item: Bluetooth headset<br /> Material: Metal and plastic<br /> Color Classification: black ・ white・ red・ blue<br /> Bluetooth profile: HSP 1.2・ SPP 1.2・ AVRCP 1.4・ HFP 1.6<br /> Stand-by time: About 80 hours<br /> RF range: 10m<br /> Charging Time: About 2 hours<br /> Calculating Conversation Time: About 3 hours<br /> Weight: 26.6g<br /> thrilling sound quality.<br /> built-in rechargeable battery.<br /> Sweat-proof material.<br /> Built for superior comfort.<br /> Package Included:<br />1 x Bluetooth Headset (Two ears)・ <br />1 x USB Charger Cable・ <br />1 x User Manual <br />The above information is for reference only