*Item weight 18g
*Shipping weight 38g
*Dimensions Length:199*194*28mn
*Microphone Unit Φ6.5mm
*S.P.L -58±2dB S.P.L at 1Khz
*Impedanc ≤2.2KΩ
*Frequency response 100Hz-10,000Hz
*Directivity Omni-directional
*Speaker diameter Φ40mm
*Frequency response 20Hz-20KHz
*Impedanc 32Ω
*S.P.L 90±3dB S.P.L at 1KHz
*Rated power 20mW
*Bluetooth version 4.0+EDR
*Support profile HSP/HFP/A2DP/AVRCP
*Transmission frequency 2.40GHz-2.48GHz
*Transmission distance 10m
*Pairing name AUSDOM M04s
*Charging port Micro USB
*Standby time More than 250 hours
*Talking time About 20 hours
*Playing time About 20 hours
*Charging time About 2~3 hours
*Battery type Build in 400mah rechargeable lithium battery
*Storage temperature -25℃ - 60℃
*Operating temperature -10℃- 45℃