SD card player intelligent core loudspeakers hawking megaphone MP3-120 seconds

Loudest ratio: 110db                                     

Distortion: 1 % MAX

Transmission distance: (wind) > 200M                            

Working voltage: DC3-6V

Frequency response: 100HZ---10KHZ                              

录 音时长：10秒

Charge time: approximately 6 hours

Weight: 0.6KG

Size: about 155MM (diameter) *245MM ( length )

持续工作时间：喊话8-15小时（LB-1500锂电池 ≫>> intelligent control, functional, usingCLASS ddigital module, low effectiveness high efficiency, the use of imported audio chip, clearer sound quality
>>> this product is suitable for shops, cars, motorcycles, street vendor, Occasions such as the selling of goods.
≫>>thin film panels, dust-proof moisture-proof,totally enclosed film panels, reliable quality and long service life. 
≫>>is using the bulk-durable lithium-ion batteries, the battery is more durable. Intelligent management for charging and discharging lithium batteries, lithium-ion battery is safe and reliable, delayed playback, battery.
≫>> available SD card player, MP3 recording for 120 seconds

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