Description:

This device is a 2*40W active speaker with a unique double-diffusion rectangular inverted tube structure, natural and rich low frequency, and high  fidelity overall sound quality. It has a built-in U-band wireless transmission function and can be used with a built-in digital U-band lavalier microphone. It has clear sound quality and strong anti-interference ability. It is suitable  for  multimedia  classrooms,  ordinary  classrooms,  conference  rooms,  training rooms, specialty stores and other places where sound amplification is required.

Description:

*It has 1-channel microphone input interface, 1-channel stereo line input interface and 1-channel line output interface.

*It has output overload, overvoltage and short circuit protection functions.

*It has 1 microphone volume adjustment knob, 1 line input volume adjustment knob, and 2 high and low frequency adjustment knobs.

*Built-in Hi-Fi high-fidelity premium speakers with an integrated electronic crossover, featuring independent amplifiers for bass and treble.

*It has 1-channel 100V broadcast input interface, which takes precedence over the local sound reinforcement signal.

*Built-in digital wireless teaching receiving module, which can connect 1 teaching  wireless  lavalier  microphone.  Audio  transmission adopts microphone wireless audio transmission technology based on U segment. Wireless audio transmission meets the frequency modulation range of 640MHz to 690MHz. It also has automatic frequency scanning and frequency matching technology functions. The whole machine has strong anti- interference ability, ID code audio encryption, stable transmission and low bit error rate.

*The whole machine is equipped with a lavalier microphone, which has 1-channel 3.5mm audio interface that can be used to connect to a headset accessory.

*The lavalier microphone has two charging methods, including charging via the microphone charging cradle contact and charging via the TYPE-C interface, with a usage time of 8 hours.

*The lavalier microphone has an intelligent detection function for the microphone status, and it will automatically shut down if there is no audio input for 40 minutes to save power.

*The infrared frequency matching technology can realize the automatic connection of wireless microphones to the system without crosstalk with other rooms or scenes.

*It has the function of mobile APP control, which can adjust the volume gain, frequency and transmission power, echo settings, reverb settings, equalizer settings, and modify the device Bluetooth name on the mobile terminal.

*With intelligent frequency scanning function, it can automatically select and avoid interference frequency bands.

*With remote upgrade function, it can realize Bluetooth online upgrade.

Specification: