Wireless headphones DEFENDER EEMOTION B645 — binaural, head-band, USB-C, AUX, closed circumaural, 20–20000 Hz, 105 dB

DEFENDER EEMOTION B645 Black are wireless binaural headphones with a head‑band design and closed circumaural earcups. The model offers universal use, supports AUX input and USB‑C for charging, and operates across a 20–20,000 Hz frequency range with a sensitivity of 105 dB.

Advantages

Closed acoustic design and circumaural ear coupling provide passive noise isolation and comfortable wearing for extended use. Wireless connectivity with an AUX input provides flexible connection options. USB‑C charging offers fast and reversible connection. The headphones are suitable for general-purpose use and come as a single unit in the package.

Suitable for

• Listening to music at home or on the go
• Watching videos and films
• Everyday, universal use with mobile devices and computers

Key specifications

• Headset type: Binaural
• Wearing style: Head‑band
• Product type: Wireless headphones
• Connectivity: Wireless with AUX input
• USB input port type: USB‑C
• Frequency response: 20–20,000 Hz
• Sensitivity: 105 dB
• Acoustic system: Closed
• Ear coupling: Circumaural

How to use

Charge the headphones using a compatible USB‑C cable until fully charged, then switch them on following the manufacturer’s power procedure. Pair the headphones with a Bluetooth device for wireless audio or connect a source via the AUX input when a wired connection is preferred. Adjust the head‑band and earcups for a comfortable seal and position the cups over the ears for optimal sound and isolation.

Recommendations

Do not disassemble or modify the product yourself; follow the manufacturer's instructions for cleaning and maintenance and avoid exposing the headphones to excessive moisture or heat.