Model:FS-R109 Color: Customized Colors Materials:ABS+PVC Connectors: 3.5mm ,Foldable Sensitivity: 103dB ± 5dB Frequency response: 20Hz-2000KHz Speaker:40mm Suitale: Adult, Kids, Cosplay etc Cable length: 1.5M Impedance: 32Ω±15% Logo is available, small order is available!