Description

Made of high-quality fiberboard, small box vibration, clear and bright sound
* Working voltage DC15V adapter, 8Ω-15W power output (built-in 15W)
* High sensitivity (93±2dB), maximum sound pressure level up to 104±2dB, effective frequency

Range up to 150Hz-15kHz
* Has one line auxiliary input, one line auxiliary output
* Built-in Bluetooth audio receiving function, can play the sound source of Bluetooth devices such as mobile phones
* Has one MIC input, MIC signal has priority, can take precedence over other signals

Play, the volume can be adjusted separately
* 100V constant voltage input has the same priority as MIC
* The connected speakers are automatically switched to the fixed-voltage transmission line of the public broadcasting after shutdown.

The terminal speaker is still in normal working condition and can still report all kinds of broadcasts.

information
* With total volume adjustment knob
* U-segment digital coding to avoid interference with other devices (eg wireless WIFI, blue)

Tooth and other similar products using 2.4G)
* Long transmission distance: stable transmission of audio in an open area of ​​more than 30 meters

according to
*The same microphone can be used in any classroom without disturbing each other. Really a teacher

Wheat, clean and environmentally friendly
* U-segment and infrared two-frequency mode: boot automatically search for channel-to-frequency with less interference,

Automatic pairing is completed within 3 seconds to ensure that the product is not cross-talking, anti-interference and transmission

Stability; infrared frequency to ensure accurate frequency matching in the same space
* Adopting 32kHz sampling rate to ensure the quality of human voice quality, unique technology before and after transmission

Processing to ensure that the received signal maintains high fidelity
* Built-in electret pickup, designed with a pickup cavity, can effectively suppress whistling

Call, improve the pickup distance, support one-button mute function
* Support volume adjustment: adjustable microphone volume and has shutdown memory

Features
* Support built-in microphone and external microphone. Use the built-in microphone to hold it

It can also be inserted in the collar, pocket or lanyard to hang on the chest.

It is recommended to use an external 3.5mm plug when using the laser pointer, remote control computer PPT and other functions.

The head of the microphone or lavalier microphone can be inserted into the external microphone jack.

Best pickup effect
* Support laser pointer, support 3.5mm audio input and microphone input
* Support PPT page turning and one-button black screen / recovery function, can be used with projector or computer

Display and explain, PPT page flip module supports hot swap, no need to install driver software
* New noise elimination circuit design can effectively reduce switching noise and low energy consumption

Meter, automatic shutdown when 2 minutes without signal, energy saving and environmental protection
* Built-in rechargeable high performance 3.7V polymer lithium battery. Battery capacity: 600mA, with

Protection circuit, safe and reliable, MICRO USB interface charging, 2 hours full of electricity can be held

Continued flight time ≥8h