Headphones Bluetooth 

Active Noise-Cancellation: Yes

version: bluetooth V5.0

effective distance: about 15meters

color: red, blue, orange, pink, green, black.

charge time: about 3hours

With Microphone: Yes

Wireless Type: bluetooth

Waterproof: Yes

Volume Control: Yes

Vocalism Principle: Dynamic

Total Harmonic Distortion: 0.5%

Support system: Mobile Phone, Computer TV all have bluetooth function

Support Memory Card: Yes

Support APP: No

Style: Headphone

Speaker: high quality 40 mm diameter speaker

Sensitivity: 92dBdB

Resistance: 32ΩΩ

Plug Type: Line Type

Playing time: >15hours,powered by rechargeable 400MAH battery

Package List: User Manual, Charging Cable

Number Of Drivers: 2

Model Number: Bluetooth headset

Max Output: 1000mW

Magnet Type: Neodymium

MP3 mode: support SD card playing MP3

Line Length: 1Nonem

Is wireless: Yes

Impedance Range: up to 32 Ω

Headphone Pads Material: Memory Foam

Function: Monitor Headphone, for Video Game, Common Headphone, For Mobile Phone, HiFi Headphone, Sport

Frequency Response Range: 20 - 20000Hz

Frequency: 2.40GHz-2.48GHz

Features: With Microphone

Earcups Type: Semi-open

Driver Diameter: 40mm

Control Button: Yes

Connectors: USB

Communication: Wireless

Charging Method: Cable

Certification: CE, FCC, RoHS

Bluetooth Version: 5.0