Oikko.com

I12 TWS Bluetooth 5.0 Earbuds/ Buds Air Earphone With Touch Control & Wireless, Charging Headset
Model: i12
>Bluetooth Chip / Version: V5.0+EDR Jerry 6916
>Speaker impedance: φmm 32Ω ± 15%
>Microphone sensitivity: +-40DB
>Wireless frequency: 2.405GHZ-2.480GHZ
>Charging box capacity: 300mah
>Headphone battery capacity: 35 mAh
>Working temperature: -10 -55 °C
>Power: DC5V
>Material: PC+ABS
>Supported file formats: A2DP, AVRCP, HSP, HFP
>Transmission power: CLASS 2
>Wireless distance: 10M or more
>Play time: 3 hours (charge box can charge the headset 5 times)
>Charging time: 40 min
>Talking time: 2-3 hours