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Model - SL - BT77 Wireless version - V5.0+EDR Speaker impedance - 32 Microphone sensitivity - 42 Db Battery - 3.7/60m Ah rechargeable battery Working temperature - 10 -55 c input - DC5V Wireless distance - 33 feet or 10 meters in clear space Playing time - 5 hour's Charging Time - 1 -2 hours Standby time - 120 hours
size FREE
size medium