Wireless headphones DEFENDER Freemotion B480 — over-ear, closed, Bluetooth, 20–20000 Hz, 99 dB, USB-C, AUX

DEFENDER Freemotion B480 are wireless over-ear closed-back headphones with a head-band design and binaural headset type. They provide Bluetooth wireless connectivity, USB-C input and AUX in, cover a frequency range of 20–20,000 Hz and have a sensitivity of 99 dB. The package contains one unit. The product contains batteries that must be disposed of correctly.

Advantages

The closed circumaural design reduces outside noise and delivers focused sound. Bluetooth wireless connection combined with USB‑C and AUX inputs gives flexible connectivity options. Head-band wearing style and binaural configuration ensure stable fit and even sound distribution across both ears.

Suitable for

• Everyday listening at home
• Remote work and video calls
• Watching movies and multimedia consumption
• Portable use with wired or wireless devices

Key specifications

• Wearing style: head-band
• Form factor: over-ear (circumaural), closed-back
• Headset type: binaural
• Recommended usage: universal
• Connectivity: Bluetooth wireless, AUX input, USB‑C input
• Frequency response: 20–20,000 Hz
• Sensitivity: 99 dB
• Package quantity: 1 unit

How to use

Put the headphones on with the head-band resting on the top of your head and ear cups covering the ears. For wireless use, enable Bluetooth on your source device, select the DEFENDER Freemotion B480 from the available devices list and pair. For wired use, connect an audio cable to the AUX input or a USB‑C cable to the USB‑C port as supported by your source device. Adjust volume on the source device and use device controls if available.

Usage recommendations

Dispose of batteries according to local regulations. To extend service life, avoid exposing the headphones to extreme temperatures, moisture, and direct sunlight; store them in a dry place when not in use.