HD sound quality stereo bluetooth headset

【Model】J18 Bluetooth headset
[Bluetooth version] V5.0 (Jerry 6936d) magnetic charging
[Transmission distance] Outdoor linear distance 15 meters
[Battery capacity] Pure cobalt battery, earphone 30mah
[Charging box battery capacity] 400mah
【Speaker】F13 titanium membrane horn
[Listening to music time] 3.5 hours
【Talk time】About 4 hours
【Standby time】120 hours 【Charging time】50 minutes
[Working current] 5-10MA [Working voltage] 3.0V-4.2V
【Distortion】<0.1% 【SNR】>90db
[Frequency] 20-20KHZ [Transmitting power] 4dbm
[Speaker impedance] 32 ohms [Carrier frequency] 2.4GHZ
[Support Bluetooth protocol] A2DP1.0 AVRCP1.5 AVDTP1.0/1.4 HFP1.5 GAVDP1.0
[Packing box size] 13*8*4cm
【Charging bin size/weight】55*44.3mm/36.3g
[Headphone size/weight] 16.7*43.8*6.1mm/6.7g
【Single gross weight/net weight】119g /43g
[Specifications] color box + manual + charging cable + earphones + charging compartment
[Function] Smart warehouse + two real battery + rename + positioning + warehouse detection + pop-up window + switch song + adjust volume + call siri + pause/play + answer call