This is a stereo headset with super compact foldable design for carrying and storing. The ear cushions are made of pressure-relieving urethane material, which provides a comfortable fit. The headset has a built-in microphone with high sensitivity and a plug rest structure for comfortable use as headphones. The headset is lightweight and comfortable to wear.
The DR-270DP is a compact, foldable stereo headset with a built‑in electret condenser microphone. It features soft urethane ear cushions, gold‑plated mini plugs for headphone and microphone connections, and is designed for use with IBM PC/AT or compatible computers that have separate microphone and audio jacks. It is not compatible with Macintosh computers.
The manual explains how to connect the headset, wear it correctly, and store it safely. When not in use, the microphone plug can be placed in the plug holder attached to the headphone plug, and the folded headset should be kept in the supplied carrying case. Technical specifications such as cord length, impedance, sensitivity, and frequency response are listed, along with precautions about volume levels and handling.
| Cord length | Approx. 1.2 m (3.9 ft) |
|---|---|
| Mass | Approx. 87 g (3.07 oz) without cord |
| Maximum input power | 1,000 mW (IEC*) |
| Impedance | 24 Ω at 1 kHz |
| Sensitivity | 102 dB/1 mW |
| Frequency response (headset) | 14 – 22,000 Hz |
| Microphone type | Electret condenser |
| Microphone open‑circuit voltage | -35 dB (0 dB = 1 V/Pa) |
| Microphone frequency range | 20 – 20,000 Hz |
Fold the headset and place it in the supplied carrying case.