Description This
Specification applies to V2 TWS bluetooth headset product model V2 The product is equipped with a charging box with 300m AH The Bluetrum Technology AB5376T 5 0 dual talk high version low power core bluetooth chip has been significantly enhanced compared to the old version in terms of compatibility stability & functionality Specifications 1 bluetooth chip & bluetooth version Zhongke Lanxun AB5376T Bluetrum Technology AB5376T V5 0 EDR2 bluetooth protocol A2DPAVCTPAVDTPAVRCPHFP3 Working frequency 2 402 G Hz 2 480 G Hz 4 Transmission power CLASS2 3DB5 Temperature range 20 to 70℃6 Speaker size & impedance ⊙8mm 32Ω7 Audio signal to noise ratio S N ≥100d B8 Microphone sensitivity 38 Db±2 Db 9 Microphone MIC 4013 round wheat 10 Headphone battery unilateral 50m AH battery model 501015 polymer lithium battery 11 Charging box battery 300m AH battery type 602030 plus protection plate polymer lithium battery 12 Headphone charging current voltage 60m A DC 4 8 5 3V13 Headphone charging time about 1 hour 14 Charging box charging time about 2 hours 15 Transmission distance ≥10 meters 16 Talk time about 5 hours 17 Listening time about 5 hours the actual usage time depends on the song type & volume requirements 80 volume 18 Working current 12m A19 Leakage current after shutdown 2 7u A20 Standby time about 70h theoretical value After the headset is connected to the mobile phone the standby time when it is not working 21 Charging port