Bluetooth noise-
[Core] : AIROHA Bluetooth version: V5.0
[Bluetooth reception distance] : 10 meters in standard environment
[Noise reduction depth] :-22~-25dB
[Penetration depth] : 5dB
[Charging interface] : Type-C
[Noise reduction depth] : 25dB
[Transmission range] : 10 meters
Duration of listening: 4-5 hours
Battery capacity of charging bin :300mAh
[Charging tank charging times] : 3 times
[Headphone capacity] : 40mah
[Charging time] : 2h in charging bin and 1.5 hours for headphones