Lucky Doll Charm Keychain

Frequency:20Hz~20,000Hz Recording frequency:50Hz~16,000HzHeadphone sensitivity:105±3dbWeight:211±5gMicrophone sensitivity:-38±2db Signal-to-noise ratio:60DBMaterial:PU+Fabric (cloth material) Interface:2 Jack 3.5m+USBInner diameter: 50*55mm USB cable length:1.8mDepth:13mm Supported Systems: Windows/MacOS/AndroidSpeaker driver size:40mm Headset function: Music, callsMicrophone diameter:Φ6*5MM Nonlinear distortion factor:5%