Function: Bluetooth 5.1. Bluetooth 5.1, receiving and transmitting two-in-one, support a variety of protocols, miniature and compact, long battery life. Battery capacity: 140mAh. i2.2174SVWySVWyCA" style="box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; height: 27107.4px; position: absolute; top: 0px; visibility: hidden; width: 1000.5px; z-index: -1;">.
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