Waspish hanging microphone with small dense reverberation USBTF card FM radio remote teaching guide

First, the scope: teaching, guided tours, mall promotions, on-site training, lectures, exhibitions. Features imported high-strength ABS engineering plastic shell, the strength of an unprecedented comprehensive electro-acoustic technology applications, showing excellent sound and whistle Yang system capacity broadband sound quality speakers, sound quality has improved significantly unique hardware protection circuit, speaker not easily broken the sound loud and clear, power more than 12W, highly efficient sound amplifier, sound coverage area of ??400 square meters A ++ grade lithium, low self-discharge, long storage Second, the product parameters output power 25W 12V 450mA charging voltage microphone pointing single point Frequency response 100Hz- 10KHz Power supply lithium battery 7.4V 2200mA host volume 85 * 38 * 105mm Microphone Sensitivity -53 ± 3dB Material: imported high-strength ABS plastic MP3 Instructions: First, the key function: 1.PLAY / PAUSE: Playback state press Play / pause, long press to select cycle mode. Radio mode short press to call up the radio station has been stored. 2.STOP: Stop. Radio mode press automatic search and auto-storage units. 3.PREV: playing mode short press on the one, long press to reduce the volume. Radio mode short press forward fine tune the frequency, press forward channel search. 4.NEXT: short press song playing mode, long press to increase volume. Under radio mode, press and fine tune frequency backward, press backward search units. 5.MODE: Press cutting source (USB / SD / Radio / off), playback mode, press to select sound. Second, product performance: 1 automatically detects the U disk / SD card is inserted and automatically play; 2. Fully compatible with USB 1.1 / 2.0 U disk, USB HOST mode play; 3. Support CARD READER, compatible with SD / MMC card; 4. Support MP3: MPEG 1,2,2.5, Layer3, bitrate: 16Kbps-320Kbps; 5. Loop (one / all) 6.6 kinds of super sound modes: POP, ROCK, Classic, JAZZ, Bass, Flat; use steps: 1 Using amplifiers, make sure the battery is enough power? Power lights red to indicate power; green light or not light indicates less power. Such as low battery, recharge before use. 2. When using the volume knob is rotated clockwise, the power indicator light turned green. Press continue Turn the volume knob clockwise, the volume will increase amplifiers; on the contrary will reduce the volume of carry-speaking until the shutdown. 3. Connect a microphone to the microphone input jack on the amplifiers, microphones and amplifiers to adjust the position to the right distance, adjust the volume knob to achieve better amplified effect. 4.AUX IN: audio input port can be connected to 3.5 audio plug. Charging Method: This machine is equipped with a 12V power adapter to the megaphone charging jack, connected to the mains to charge the battery. When the battery is charging, the charging indicator light red; rechargeable lights green when fully charged. Each charge time is about 4 to 6 hours. Note: 1. When the Amplifier power indicator light green, if it continues to use the machine to carry speak will automatically power off to protect internal battery. 2. microphone microphone core direction of the mouth and the response within 2 centimeters. 3. After using megaphone please charge for the next use. Charging method of the machine is equipped with 12V power adapter to carry speak charging jack, connected to the mains to charge the battery. When the battery is charging, the charging indicator light red; rechargeable lights green when fully charged. Each charge time is about 6 hours. Packing List Portable speak host a power charger 1 strap 1 Manual 1 Warranty Card 1 Remote control a consulting Address: http: //ruikangdq.taobao.com