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Professional amplifiers
are designed for teaching, speaking, gatherings and other
activities. With the characteristics of timbre fidelity, frequency
stability, anti-interference, etc., the product adopts intelligent
power supply design, special battery over-discharge protection
circuit is provided to prevent the battery from being damaged due to
incorrect operation, the appearance design is elegant, easy to
carry, and simple to operate. It is the good assistant for your
teaching, assembly and speech.
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Waist-Carry Loudspeaker |
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MODEL：AT-370 |
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Professional commissioning matching
super magnetic speaker unit, sound clear, volume
full loud Completely satisfies 100 to 150 square
meters of space. Microphone anti-howling exclusive
design, Lithium battery power supply. Special power
saving design, low power consumption, fully meet
your need for long time working. Smart charging
design, charging speed, economic convenience and
environmental protection. Audio input port can be
external MP3, MP4, CD use it for sound
reinforcement. The shell adopts ABS special
material, which is sturdy and durable, exquisite and
beautiful.
length x
width x height: 8 cm x 8 cm x 4 cm.
weight: 200g. |
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Professional Voice Amplifier |
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MODEL：AT-638A |
Quartz
oscillation locking technology, stable frequency,
high fidelity, no noise, built-in amplifier circuit.
Speaker output power 60 watts, 2.2AH rechargeable
lithium battery. Overall Shaped steel structure
design, easy to carry, simple operation, suitable
for lectures inside and outside school activities,
working distance 35 meters.
length x width x
height: 18 cm x 29.5 cm x 11 cm. |
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Window Intercom
Kit Dual-way Intercom System |
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MODEL：MJ-500A |
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★Complete
dual-way intercom system for easy operation.
★Built-in
American Microsoft language processing chip promises clear voice.
★Indoor
volume and outdoor volume can be adjusted separately.
★Suitable
for places with inside and outside intercom-munication such as bank,
★hospital,
ticket office and stock company, etc.
★Input voltage: AC (AC) 100V ~ 240V
★Output voltage: DC9V
★Main sound box: 2W 100Hz ~ 15KHz
★Sub-sound box: 2W 100Hz ~ 15KHz
★Inside microphone: -48db 20Hz ~ 20KHz
★Outside microphone: -48db 20Hz ~ 20KHz
★length x width x height: internal host 15.8 cm x 8.7 cm x 4.6 cm,
external speakers 9.3 cm x 7.0 cm x 2.5 cm. mic
length: 37 cm. |
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