Ohm Denki AudioComm Fully Wireless Earphones (Black) [HP-W510N-K]

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Specifications
Power supply : 5 VDC (USB power supply : Type-C terminal)
Built-in battery : rechargeable lithium polymer battery (Earphone : 50 mAh charging case : 350 mAh)
Communication method : Bluetooth standard Ver. 5.0
Compatible profile : HSP, HFP, A2DP, AVRCP, TWS, SPP
Compatible codec : SBC, AAC
Modulation method / Frequency band : FHSS/2.402 to 2.480 GHz
Maximum communication distance : Approximately 10m Prospect (Class2)
Playback frequency band : 20 Hz to 20 kHz (A2DP)
Mic-directional characteristics / Sensitivity : Non-directional / -22dB
Charging time : Earphone : Approximately 1 hour and 30 minutes Charging case : Approximately 1 hour (both from 0 remaining amount to full charge)
Maximum playback time : Earphone : Approximately 5 hours (50% volume) Standby : Approximately 1 hour (both from remaining amount to full charge)
Maximum playback time : Maximum 5 hours (50% volume)
Call / Stand-by time : Telephone : Approximately 5 hours (50% volume) Standby : Approximately 10 hours (both from remaining amount to full charge)
Maximum playback time : Maximum 5 hours (50% volume)
Acceptable operating temperature / humidity : Temperature 0 to 40 ℃ Humidity : 20 to 80% (non-condensing)
Waterproof performance : IPX6 (waterproof type) (earphone only)
External Dimensions : Earphone : Approx. width 26.5 x height 18.8 x depth 16.9 mm, Charging Case : Approx. width 90.0 x height 30.0 x depth 47.8 mm
Mass : Earphone : Approx. 4.1g (