Brand Name: Ternzun 

Style: Earbuds 

Vocalism Principle: Dynamic 

Control Button: Yes 

Active Noise-Cancellation: Yes 

Communication: Wireless 

Volume Control: No 

Sensitivity: 120±5dBdB 

Wireless Type: Bluetooth 

Is wireless: Yes 

Line Length: 0Nonem 

Support APP: No 

Function: for Video Game 

Function: Common Headphone 

Function: For Mobile Phone 

Function: HiFi Headphone 

Function: Sport 

Number Of Drivers: 1 

Plug Type: NONE 

Package List: User Manual 

Package List: Charging case 

Package List: Charging Cable 

Impedance Range: up to 32 Ω 

Connectors: USB 

Model Number: M19 Wireless TWS touch headset 

Earcups Type: Sealed 

Headphone Pads Material: SILICONE 

Bluetooth Version: 5.0 

Codecs: sbc 

Support Memory Card: No 

Driver Diameter: 8mm 

Resistance: 32ΩΩ 

Waterproof: Yes 

Frequency Response Range: 20 - 20000Hz 

Total Harmonic Distortion: 1% 

With Microphone: Yes 

Charging Method: CABLE 

Magnet Type: Neodymium 

battery: 400mAh charge case,55mAh earbud 

bluetooth version: bluetooth V5.0 

work time: about -4-5 hours 

charge time: earbuds:about 1 hour,charge case:about 2 hour 

Color: black, white