UGREEN Revodok USB C Hub 6 in 1 USB C Dongle 4K HDMI, 3 USB 3.0 Ports, SD/TF Card Reader Compatible with MacBook Pro, MacBook Air, iPad, iPhone 16 15 Pro/Pro Max. Space Grey

Speaker size: $40*7.8H mmImpedance: 320‡15%Output sound pressure: 100÷3dBFrequency Response Range: 20Hz~20K HzRated Input Power: 20mWMaximum Input Power: 30mWLeft/Right Sensitivity Difference: 3dbMicrophone specifications: 6050Mark wind sensitivity: -42 ‡ 3dB (0dB = 1V / Pa, 1KHz)Microphone pointing: single pointingSize: 190*170*80mmExecution standard:GB 4943.1-2022, GB/T 9254-