21664 - Headphones TRUST - Free user manual and instructions
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| Product Type | Headphones |
| Brand | Trust |
| Model | 21664 |
| Connectivity | Wired (3.5 mm jack) |
| Driver Size | 40 mm |
| Frequency Response | 20 Hz - 20 kHz |
| Impedance | 32 ohms |
| Sensitivity | 98 dB |
| Cable Length | 1.2 m |
| Weight | 200 g |
| Controls | In-line remote with microphone |
| Color | Black |
| Compatibility | Devices with 3.5 mm audio jack |
| Features | Foldable, adjustable headband, padded ear cups |
| Care Instructions | Wipe with dry cloth |
| Safety Warning | Not suitable for children under 3 years |
| Spare Parts Available | Ear pads replaceable |
| Warranty | 2 years |
| Included Accessories | Audio cable, user manual |
Frequently Asked Questions - 21664 TRUST
How do I connect these headphones?
Simply plug the 3.5 mm jack into your device's audio output. No pairing is required.
Can I adjust the volume?
Yes, use the in-line remote on the cable to control volume and play/pause.
Do these headphones have a microphone?
Yes, the in-line remote includes a microphone for calls and voice commands.
Are they compatible with my PC?
Yes, if your PC has a 3.5 mm headphone jack. For separate mic and audio jacks, a splitter may be needed.
How do I clean the headphones?
Wipe the ear cups and headband with a dry soft cloth. Do not use water or chemicals.
Can I replace the ear pads?
Yes, ear pads are replaceable. Contact Trust support or check online for spare parts.
What is the warranty period?
The Trust 21664 headphones come with a 2-year warranty.
Why is there no sound?
Check that the jack is fully inserted, the device volume is turned up, and the cable is not damaged.
Are these headphones foldable?
Yes, they are foldable for compact storage and portability.
Can I use them with an iPhone?
Yes, if your iPhone has a 3.5 mm jack or with a Lightning-to-3.5 mm adapter.
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