The product's shade and actual color may differ from what is shown in the picture, as the images are for illustrative purposes. The product description is general and may not include all the product's features.
Defender FreeMotion B400 Headphones Wired & Wireless Head-band Calls/Music/Sport/Everyday USB Type-C Bluetooth Black
25,18 €
25.08 €
2682102 63400
4745090824162
2026-09-29
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All about the product
Wireless Bluetooth headsetCompact foldable construction allows to take the headset with you easily
LED backlight of headphones
To turn off the backlight, double-click the M/EQ button
Built-in microphone
Built-in microphone ensures high sound clarity
MicroSD card slot
Micro-SD card slot allows to convert the headphones into MP3 player and listen to music without connection to smartphone or laptop
Up to 32 hours of battery operation time
The operating time of the device is indicated without backlight and may vary depending on the listening mode, volume level and environmental conditions
Controls on earcups
Allow to answer the phone call or to switch tracks without taking the phone out of your pocket
Audio cable included
When the headset battery is discharged you can connect it via the cable and continue listening to music
Adjustable headband
You can adjust the headband to the most convenient length
10 m operation range
The headset allows to speak on phone or listen to internet-radio from your laptop while moving around the room freely
Performance | |
| Product colour | Black |
| Volume control | Button |
| Headset type | Binaural |
| Wearing style | Head-band |
| Foldable | Yes |
| Backlight colour | Multicolour |
| Backlight | Yes |
| Compatible memory cards | MicroSD (TransFlash) |
| Control unit type | On-ear control unit |
| Control type | Buttons |
| Recommended usage | Calls/Music/Sport/Everyday |
| Product type | Headset |
| Detachable cable | Yes |
| On/off switch | Yes |
| Operating keys | Multi-key |
| Music playback | Yes |
| Adjustable headband | Yes |
| Housing material | Plastic |
Ports & interfaces | |
| Frequency band | 2.402 - 2.48 GHz |
| Bluetooth profiles | A2DP, AVRCP, HFP, HSP |
| Bluetooth version | 5.3 |
| Wireless range | 15 m |
| Connectivity technology | Wired & Wireless |
| 3.5 mm connector | Yes |
| USB connectivity | Yes |
| USB connector | USB Type-C |
| Bluetooth | Yes |
Headphones | |
| Headphone sensitivity | 118 dB |
| Headphone frequency | 20 - 20000 Hz |
| Ear coupling | Supraaural |
| Acoustic system | Closed |
| Noise canceling type | Passive |
| Intraaural headphones type | Earbuds |
| Diaphragm diameter | 4 cm |
| Noise canceling | Yes |
Microphone | |
| Microphone frequency | 20 - 20000 Hz |
| Microphone sensitivity | -42 dB |
| Detachable microphone | Yes |
| Microphone type | Built-in |
Battery | |
| Continuous audio playback time | 32 h |
| Talk time | 32 h |
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery capacity | 800 mAh |
| Battery type | Built-in battery |
| Charging source | USB |
| Battery operated | Yes |
Weight & dimensions | |
| Weight | 220 g |
| Depth | 80 mm |
| Height | 190 mm |
| Width | 175 mm |
Packaging content | |
| Cables included | Audio (3.5mm) |
Packaging data | |
| Package weight | 350 g |
| Package depth | 85 mm |
| Package height | 170 mm |
| Package type | Hanging box |
| Package width | 153 mm |
Logistics data | |
| Master (outer) case width | 360 mm |
| Master (outer) case length | 325 mm |
| Master (outer) case height | 550 mm |
| Master (outer) case gross weight | 8.4 kg |
| Products per master (outer) case | 24 pc(s) |
| Master (outer) case volume | 0.0643 cm³ |
| Shipping (inner) case volume | 0.0022 cm³ |
Other features | |
| Equalizer | Yes |
Operational conditions | |
| Operating temperature (T-T) | -20 - 60 °C |
Technical details | |
| Pallet ITF-14 (EU) | 14745090824169 |
Certificates | |
| Compliance certificates | CE, RoHS |
