.1.강의용 유,무선 겸용 앰프, 일반적인 강의실에서 충분한 음량으로 불편함이 없는 제품.2.충전기능, 에코기능, 무선 송신기에서 음량 조절이 가능합니다. 소형 경량 미려한디자인.3.기본 구성품 : 앰프(무선수신기내장), 무선송신기(벨트팩형), 핀마이크, 목(Neck)마이크, (유선마이크 별매)4.제품 크기 : 220(W) X 290(H) X 130(D) mm 1. 20 watts professional wireless portable P.A. system 2. Suitable for classroom activities, product presentation, meeting, karaoke singing...etc. 3. Receiver unit with built in battery charger and slot-in rechargeable battery for easy changing 4. Transmitter unit uses 2pcs AA size batteries with 40 hours operation time 5. Volume control on transmitter for your convenience to adjust volume from where you are 6. Echo design suitable for karaoke singing 7. Transmitter: . Freq. range: 170-250 MHz . Output power: 20mW min . Current consumption: DC 20mA max . Power source: DC 3V . Modulation: FM+/-30KHz max . Frequency stability: +/-10PPM . AF response: +/-3dB . Distortion: 5% Max(at DEV+/-9KHz) 8. Receiver: . Max power output: 20W min(at 40 ohm speaker load) . Sensitivity: 2.5uV min(under squelch control) . Distortion: 5% max(at 10W output) . Frequency stability: +/-10PPM . Hum & noise: 60dB min . AF response: +/-3dB(at 100Hz-10KHz) . Current consumption: 1200mA max . Sound control: volume, tone, echo . Dimension: Width 7.1 x Height 9.8 x Depth 4inches . Power source: AC 110V or 220V DC 12V . Weight: 2.5kgs

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