Sleep Mask Bluetooth Sleeping Headband Thin Soft Elastic Comfortable Wireless Music Eye Mask For Side Sleeper

Brand Name: Style:Headphone Vocalism Principle:Dynamic Origin:Mainland China Active Noise-Cancellation:No Material:plastic Control Button:No Communication:True Wireless Volume Control:Yes Certification:none Number Of Drivers:2 Plug Type:none Impedance Range:up to 32 Ω Headphone Pads Material:OTHER Support Memory Card:No Waterproof:Yes Frequency Response Range: Magnet Type:OTHER Wireless Type:bluetooth Line Length:0Nonem Package List:User Manual Package List:Charging Cable Codecs:none Driver Diameter:8mm Resistance:32ΩΩ Sensitivity:120±2dB Is wireless:Yes Connectors:None Earcups Type:Sealed Bluetooth Version:5.0 Total Harmonic Distortion:0.03% Charging Method:cable Max Output:0.05mW Support APP:Yes With Microphone:Yes