Category: Shopping advice

Question:
street vendors can be used as a “self-selling audio loop recording horns.” what is the name of its products, the longest recording time is how much the price of ordinary number, thank you!

Answer:
anything can be called, because there are many name for

selling hand-held device microphone recording MEGAPHONE folding electric horn megaphone

Details:

1 imported integrated circuits with the sound quality was loud and clear clarity, communication distance, at least up to 300 meters

2 folding handle is easier to carry, built-in rechargeable battery charger, you no longer need to increase spending.

3 height of about 25 cm recordable 12 seconds

4 1 Maximum power 5W 2 transmission distance (the wind) 200M 3 working voltage DC5V 4 Frequency 500 ~ 5000Hz 5 storage time of 12 seconds

price is 40-50 yuan Bar

Source: auction1.taobao.com/auction/0/item_detail-0db2-7deb8d4feb3a8b5fc01c038013e3bca7.jhtml

want to help you!

请问一种通常用于叫卖的喇叭.

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