new wireless bluetooth 4.2 music hat cap with stereo headset headphone earphone speaker mic for outdoor sports christmas gift

sensitivity: 123db support app: no frequency response range: 20-20000hz line length: none style: headband communication: wireless support apt-x: no volume control: yes active noise-cancellation: yes plug type: usb connectors: none waterproof: no model number: bluetooth hat function: sport vocalism principle: dynamic is wireless: yes support memory card: yes brand name: chenfec with microphone: yes control button: yes resistance: 9r wireless type: bluetooth