Bluetooth headphones Hoco EW47 True wireless

Bluetooth5.3 Weight56 g Battery capacity300 mAh charging case, 40 mAh headphones Time of use4 hours Operating time in standby mode150 hours Type of headphone mountin-ear Country of manufactureChina Type of acoustic designclosed Body materialplastic; silicone Wireless communication radius10 meters Diameter of the membrane10 mm Impedance32 ohms Minimum playback frequency20 Hz Maximum playback frequency20,000 Hz Sensitivity98 dB