ET H-4 Gaming Headset is not the well-known headset brand, but, with its H-4 offering the quality sound that will satisfy almost all users. It allows for watching movies and listening to music as long as you aren't too picky about the sound.

Speaker size: 50mm
Microphone impedance: 2.2K Ω
Impedance: 32Ω ± 15%
Directionality: Omni-directional
Sensitivity: 112 ± 3dB
Cable length: 2.1M ± 0.15
Frequency range: 15Hz-20KHz
LED working voltage: DC5V±5%
Microphone: 6.0x2.7mm
Working current: ≤100mA
Microphone sensitivity: -38±3dB
Headset jack: USB + Single 3.5mm 4 Pin

• Applicable to the audio device which has 3.5mm single-plug interface.
• Skin-friendly protein earmuff, which features environmental protection, wear-proof and wearing comfortable.
• Unique lightweight designed, self-adjusting head beam for great wearing experience.
• High-quality speaker unit delivers noise-canceling and bass sound experience.
• High-sensitivity and flexible microphone offers more accurate, clear and smooth voice.
• Support Win7/Win8/Win8.1/Win10/XP system in 32-bit or 64-bit.

• 1 x H-4 Gaming headset
• 1 x Operating instructions

• 1. There is accompaniment but no singing when playing music?
The plug of H-4 headset is international (CTIA) standard single 3.5mm quadrupolar type, that pin connection is left channel, right channel, ground wire, and microphone. It is the most popular connection in the market. If your device is a non-international standard interface, there will arise the phenomenon of background sound only, you need to use an adapter cable for it.

• 2. The voice chatting can’t work when playing music？
A) Please make sure that the microphone mute button is turned off, and make sure that the microphone works normally;
B) Please make sure that if your device has a non-international standard interface which has the function of audio/voice combination.

• 3. There arises the noise, small volume, unclear sound, or one side with sound and the other side without sound?
A) Please check if the plug is well inserted into the interface device;
B) Please make sure your device has the international standard interface which is quadrupolar and single plug type.

• 4. No sound when using the headset?
A) Please check if the plug is well inserted into the interface device;
B) There are electrics of strong magnetic, please take them away, such as mobile phones, fans, and so on;
C) Please check if the microphone boost of your computer is turned on. Please open the Control Panel -> Sound -> Record -> Level -> Microphone Boost to adjust the mode.

• Please enjoy music at a moderate volume to prevent adverse effects on the hearing.
• Please be careful to wear when driving or cycling.
• This headset can only be used for the single-hole interface, you can use 1-to-2 adapter cable for it. (Not included.)