Bluetooth noise-
[Core] : BES2300ZP Bluetooth version: V5.0
[Bluetooth reception distance] : 10 meters in standard environment
[Noise reduction depth] : 25dB
[Penetration depth] : 5dB
[Charging interface] : Type-C
[Noise reduction depth] : 25dB
[Transmission range] : 10 meters
[Duration of headphones] : 8 hours
[Duration of listening: 4-5 hours
Battery capacity of charging bin :500mAh
[Charging tank charging times] : 3 times
[Headphone capacity] :45mah
[Charging time] : 2h in charging bin and 1.5 hours for headphones
Standby time: 400 hours
[Waterproof test] : IPX4
[Product weight] : net weight 43G, with packing 116G
[Color] : black and white
[Support protocol] : HSP/HFP/A2DP/AVRCP
[Support functions] : Automatic switch, dual ear call, switch function, android and iPhone/iPad/iPod power display, low power alarm