【Cospa best bluetooth earphone】 Bluetooth V 4.1 + EDR You can experience pairing connection that is easier, faster and seamless than EDR. Housekeeping &amp; driving &amp; working &amp; running while running, you can enjoy music and voice teaching materials etc ♪ ♪ Minimum volume is not too big ♪ friendly to ears Technical certification number: 204-720044 <br> 【Surprised talk time】 Continuous talk time up to 6 - 8 H, standby time 150 H, commuting &amp; going to school will be more enjoyable time. <br> [Comfortable fit] The natural shape of the ear with ergonomic design is very easy to match, hard to fall, only 3.7 g, the best fitting feeling to forget to wear, even in a comfortable fit in a long time It does not hurt. <br> 【Convenient Wireless Charging】 Two magnet USB chargers are included, and MicroUSB charging cable is unnecessary, room use &amp; for in-car use &amp; for workplace, it can be charged anywhere comfortably. <br> [Safety 12 months support] Main body x 1, magnet USB charger x 2, storage case x 1, earpiece x 2 (one size), warranty card x 1, Japanese manual x 1. Please note: When connecting device is in pocket, Bluetooth signal may be disconnected. Please note that cosmetic boxes may be different.