The pair of earphones are BT 5.0 transmission and t-ouch control operation, small and portable for your sport. It is convenient w-ireless charge by the charge box.<br/>Features:<br />Small and portable, easy to put into your pocket.<br />Sensitive metal contacts, convenient w-ireless charge.<br />Stereo surround sound for your hearing enjoyment.<br />T-ouch control to operate music playing, calling, etc.<br />BT 5.0, long transmission distance, stable and quick.<br/>Specifications:<br />Color: White<br />BT Version: V5.0 &#43; EDR<br />Support Protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3<br />Frequency Range: 2.4GHz<br />Transmission Distance: 15-25m<br />Cell: <br />   Earphone: 35mah<br />   Charge Box: 300mah (included)<br />Standby Time: 6h<br />Play Time: 2-3h<br />Call Time: 4h<br />Item Weight: 30g / 1.06ounces<br />Package Weight: 82g / 2.89ounces<br />Package Size: 120 * 80 * 32mm / 4.72 * 3.15 * 1.26in<br/>Packing List:<br />2 * Earphone<br />1 * Charge Box<br />1 * USB Cable<br />1 * User Manual