Digital Voice Receiver

Digital Sound Amplifier

The sound collector market in Korea is expected to dramatically expand with its accelerating aging group as the digital aid or the healthcare product, not the medical devices.

We deliver the earphone/headphone and the related products (semiproduct/product/SW) targeting the premium market of the smartphone accessories. The premium level brand, such as the Bit by Dr. Dre is expected to lead the masstage market of the top quality earset/headset along with the mania customer bracket.

Features:1. The ALC (autolevel control) circuit protects the ears from unpleasant sound.

2. The sudden noise or the unpleasant sound is protected by the ALC circuit for stable volume output.

3. The easy-to-use separate adjustment ring for each ear.

4. The sound balance for each ear for customization.

5. The mic is built in the earphone part for the natural surrounding sound.

6. The mic that capture the sound precisely arisen around is built in the earphone part for closer and clearer sound and voice.

7. The three types of sound modes (normal, dialog, and outdoor).

8. The digital circuit is installed for the for all-round use, the for the conversational use and the for trapping the wind and the noise and the mode is quick-to-convert for convenience.

Spec:

Body

Frequency characteristics

700Hz ~ 4,000 Hz (converts depending on the mode)

power

DC2.4V (sub dedicated rechargeable battery × 2) or DC 3 V (4 type battery × 2)

Life in continuous use

24 hours (when charged fully)

Dimension

H 57 × W 57 × D 21 mm

Weight

55 g (battery not included)

Cord length

0.6 m (Y type)

Mic part

Type

Electrets condenser type

Polar pattern

Omnidirectional

sensitivity

-44dB (0 dB = 1 V/Pa, ??1 kHz)

Earphone part

driver

f 10 mm

impedance

16 O

charger

Power voltage

DC 5 V

Electric power

4 W