Sleeping Headphones Bluetooth Headband

SPECIFICATIONS Style: On-ear Vocalism Principle: Dynamic Active Noise-Cancellation: No Material: Ice silk cotton Control Button: No Communication: Wireless Volume Control: Yes Category: Earphones & Headphones Certification: CE/ FCC Plug Type: Line Type Impedance Range: up to 32 Ω Support Memory Card: No Waterproof: No Frequency Response Range: -Hz Wireless Type: bluetooth Package List: User Manual/Charging Cable Is wireless: Yes Earcups Type: Sealed Bluetooth Version: 5.0 Charging Method: Cable Support APP: No Function: Common Headphone/For Mobile Phone/HiFi Headphone With Microphone: Yes Features: With Microphone Line Length: 0m Number Of Drivers: 2 Resistance: 32Ω Frequency Response Range: 20 - 20000Hz