Transducer Dynamic: 40mm Acoustic design: Closed Wearing type: Over-ear Frequency response: 20 - 20,000 Hz Transmission: Bluetooth®+ Dongle+ Analogue connection + USB audio Bluetooth® frequency range: 2,400 - 2,483.5 MHz Bluetooth® 6.0; A2DP, HFP, AAC,SBC,LC3 USB: USB-C USB audio connections: Yes Charging during use: Yes Transmitting power: max. 10 dBm Range: 20 m Operating temp. range: -10 to +50 °C Charging temp. range: 0 to +45 °C Battery runtime up to 60 hrs. Weight (without cable) 320g | 
