Bluetooth adapter for the Sena B2M-01 Mesh intercom, black

Characteristics Model: Adapter Maximum range: 800 m Working time: Up to 13 hours Product color: Black Bluetooth version: 4.1 Bluetooth: Yes Weight and dimensions Product height: 26 mm Product length: 187 mm Product weight: 60 g Product width: 45 mm Battery Battery type: Lithium Polymer (LiPo) Battery capacity: 1200 mAh Safety warning Warnings Check the condition of the batteries regularly to prevent leakage. Do not use near sources of heat or fire. Keep away from children.