One-to-One Full-Duplex Intercom at All Times

The audio frequency of the subwoofer ranges from 20Hz to 120Hz to produce a stunning sound effect. This solution utilizes completely uncompressed audio encoding, ensuring low cost, low power consumption, and easy interfaces. The transmission module of this solution can coexist in the same space with a Bluetooth module without mutual interference, and the Bluetooth usage distance remains unaffected.

  • Automatic Channel Allocation

    Pre-set Number of Channels: 14, Supports One Transmitter to Multiple Receivers; Multiple Sets Can Be Used Simultaneously Without Interference

  • Strong anti-interference capability

    Digital processing for audio transmission

  • Resistance to WiFi Interference

    Wireless transmission with resistance to WiFi interference

  • Avoiding Bluetooth

    2.4GHz wireless transmission does not interfere with Bluetooth wireless transmission

  • Transmission Distance

    Wireless transmission distance of over 15 meters in open areas

  • Rapid Productization

    Built-in PCB antenna reduces costs and development time

Quick guide download

Specification ItemsAudio Transmission ModuleAudio Reception Module

Power Supply Voltage

5V

5V

Current Consumption

<25mA        

<25mA        

Operating Temperature

-10 ℃ ～ +70 ℃

-10 ℃ ～ +70 ℃

Frequency Range

2400～2483.5MHz

2400～2483.5MHz

Number of Channels

20

20

Modulation Type

GFSK

GFSK

Transmission Power

10dBM


Input Impedance

1OK Ohm


Input Level

2.8Vp-p(Max)


Receiver Sensitivity


-85dBm(Min.)

Output Impedance


32 Ohm

Output Level


2.8Vp-p(Max)

Audio Latency

<10ms        

<10ms      

Frequency Response

10～7.6KHz,±3dB

10～7.6KHz,±3dB

Dynamic Range @1kHz

81dB

81dB

Total Harmonic Distortion

0.1%

0.1%


Quick guide download

  • Pairing

    The device needs to be paired with the main device during the initial setup. Pairing is a one-time process; afterward, the device can be used upon powering on

  • Connection signal

    Successful connection results in a low-level output from the control pin of the receiving module; it is high-level when there is no connection

  • Indicator lights

    Upon powering up, the LED on the transmitter module blinks slowly. When the receiver module is powered up and not connected, the LED blinks quickly. When the receiver module is powered up and connected, the LED blinks slowly

  • Data communication

    The device features an integrated wireless communication data link and supports local serial communication through the UART port

Quick guide download