Specifications:

Brand name: Redragon

Style: Headphones

Vocalism Principle: Dynamic

Origin: Mainland China

Active noise-cancellation: No

Material: Metal, Plastic

Control button: Yes

Communication: Wired

Volume control: Yes

Certification: CE, FCC

Plug type: Line type

Headphone pads material: Memory foam

Support memory card: No

Waterproof: No

Frequency response range: 20: 20000Hz

Wireless type: None

Line length: 2m

Codecs: None

Resistance: 20Ω

Sensitivity: 116+/-3dBIs 

Wireless: No

Connectors: USB

Support APP: No

Function: for internet bar, video game, common headphones, HiFi headphones

With microphone: Yes

Features:

Key features:

 - RGB USB gaming headset with 7.1-Channel Surround Sound

 - Support multiple EQ and RGB lighting

 - Retractable microphone design

 - The headset adopts a 50mm high-end sound driver to enhance the bas and overall vocal range

 - In-line control available with volume and microphone, lighting, EQ adjustment

 - Lightweight design and earphones can be rotated in four directions

Headset backlighting pattern:

1.) Press the lighting control button to switch 4 lighting patterns: RGB running-RGB steady on-RGB breathing-7 colors switch.

2.) Long press the lighting control button to turn it OfF.

3.) Long press the lighting control button to turn it ON.

Headset EQ modes press the EQ control button:

1.) 7.1-Channel Surround Sound

2.) EQ mega bass

3.) EQ treble

4.) 2.0 stereo

What's inside the box: 

1 x Redragon Nireus H399 headset

1 x User manual