Features:<br />The ultimate light: 4g・ wearing almost feel the weight of less than headphones.<br />Ultimate small: 25 * 16 * 20mm・ more fit ear・ comfortable to wear.<br />Unique charging: Pin-charging・ look more refined・ more perfect products.<br />High quality requirements: low power・ high performance; battery with protection board・ charging more secure・ more often recycling; copper rings speakers provide better sound quality; good call quality.<br />Easy to transport packaging: kraft paper heaven and earth covered hard case・ high-density foam fixed・ transport more confidence<br /> <br />Specifications:<br />Bluetooth Verson: V4.1+EDR<br />Bluetooth Mode: bluetooth /headset/A2DP<br />Radio Frequency:2.402*2.480GHz<br />Transmission Level: Class 2<br />Support A2DP: Music play(audio output 35mW・Play/pause)<br />Talk time: 4.5hours(music play time about 4hours)<br />Battery type:50mAh rechargeable polymer battery.<br /> <br />Packing:<br />1*bluetooth headset<br />1*cable for charge<br />1*manual