Battery & Bluetooth Chip for FreedConn BM2-S BM12 Motorcycle Bluetooth Helmet (Battery & Bluetooth Chip) auspowers_batchone self-locking rings attach to a

self-locking rings attach to a shaft by using friction from means such as teeth and notches to maintain placement

Compatible with: Volvo: 2000-2003 S40 / V40

Input voltage is 5V

5mm | Primary Side Connection: NEMA15-P | Secondary Side Connection: 3

Battery & Bluetooth Chip for FreedConn BM2-S BM12 Motorcycle Bluetooth Helmet (Battery & Bluetooth Chip) auspowers_batchone self-locking rings attach to aBattery & Bluetooth Chip for FreedConn BM2 S BM12 Motorcycle Bluetooth Helmet (Battery & Bluetooth Chip) IMPORTANT REMIND To preserve battery life, it will enter deep sleep mode for long time no charge. Thus we suggest you to charge it regularly, at least 1 time a month, especially when you don't use it in winter. On this condition, Bluetooth mode may not available. To wake it up, please try to charge it with 6~12 volt charger for half an hour. If