Remote control LCD Display USB Mini Teaching speakers & Tour guide microphone audio amplifier With Li-ion Battery

Product Introduction: 

Mini Microphone is tailored for the majority of teachers, friends, products of an intimate, the sound loud and clear, high fidelity, both to protect the voice, but also to improve classroom teaching. For small conferences, gatherings, indoor and outdoor education, outdoor tourism activities, tour guides, karaoke 0K partner, promotional merchandise, auctions and so on.

1, teaching speakers Classification
 Amplifier is mainly used for teaching teachers to teach, now divided into two categories:
 First: teaching microphone cable
 The second: wireless speakers teaching

2, the teaching power amplifier
 12W power amplifier in the cable around, frequency response: 100HZ-13, 000HZ 1db

3, the role of teaching speakers
 The teacher's voice must be damaged in teaching, there will be discomfort, does not affect our students for the lectures, will use loudspeakers to improve the quality of teaching can effectively protect the voice, on the one hand easy to manage, on the other hand to help students Lianting Li.

4. Teaching speakers Caution:
 1 microphone using the microphone is on the speakers should be avoided, a clear right to adjust the volume, so to avoid the phenomenon of distortion and feedback whistle.
 2 Do not pull the use, drag lines microphone twist, or prone to poor contact line between the wires.
 3 host cells do not overcharge and over discharge time, low-battery indicator should be promptly charged, idle summer vacation should pay attention to one or two months on one charge.

Parameters :

Out of power: RMS30W
Frequency response: 100HZ-13, 000HZ +1 db
Current consumption: 150mA
Input: Microphone (-20db, 600)
Voltage: DC 7.4V, Lithium battery
Material: ABS plastic
Product Dimensions: 10.2 × 9.5 × 3.3cm
Weight: 461g
Coverage: to cover 600 square meters, 2200mA Lithium Battery
Working Hours: 8-15 hours class time the teacher

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