Oneday OE24 ANC mini TWS Blue tooth Ear phone

1.Bluetooth version V5.3
2.Bluetooth Solution Jerry 7003D4
3.Audio coding protocols SBC, AAC
4.Effective range of 10 meters
5.45mAh headphone battery specification protection board
6.Earphone charging time ≈ 1.5 hours
7.Charging box charging standard DC 5V1A
8.Charge the earphones approximately 3 times
9.Speaker size Ø 10mm
10.Speaker impedance 32 Ω± 15%
11.Frequency response range 20Hz~20KHz
12.Weight (single earphone) ≈ 4.8g
13.Weight (complete set) ≈ 60.8g
14.Supports Bluetooth protocols HFP, A2DP, AVRCP
15.Signal power level Class 2
16.Working frequency 2.402GHz-2.480GHz
17.Earphone charging voltage DC 5V ± 0.2V
18.Charging case battery specification 400mAh protective board
19.Charging time for charging case ≈ 2 hours
20.Connection standby time ≈ 70H
21.Accumulated battery life of approximately 32H
22.Speaker sensitivity 109 ± 3dB