SHIDU (10shidu) is a leading manufacturer of acoustic audio products, specializing in portable voice amplifiers, digital speakers, and wireless microphones.
Shenzhen SHIDU Digital Co., Ltd., commonly known as SHIDU or 10shidu, is a prominent manufacturer of acoustic audio equipment based in China. The brand focuses on producing high-quality portable voice amplifiers, Bluetooth speakers, and UHF wireless microphone systems catering to teachers, tour guides, and public speakers.
With a strong emphasis on acoustic technology, SHIDU aims to deliver clear and powerful sound amplification for everyday communication needs. Their product lineup includes wired and wireless voice amplifiers, multifunction portable speakers, and karaoke audio systems that support modern features like Bluetooth connectivity, TF card playback, and intuitive volume and equalization controls.
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Turn on the amplifier and switch it to UHF mode. Long press the 'M' or 'Mode/Loop' key for 3 seconds until the blue indicator flashes and prompts 'UHF is waiting for connection'. Then turn on the wireless microphone, optionally select the frequency, and long-press the WiFi/Pairing key or quickly press the power button three times (depending on the model) until the indicator stops flashing and the prompt says 'UHF is connected'.
Howling occurs when the microphone is too close to the amplifier speaker. To prevent this, ensure the microphone does not point directly at the amplifier and maintain a distance of at least 60 cm between the two. Wearing the speaker around your waist and the headset on your head helps achieve this distance. You can also turn down the volume to reduce feedback.
It typically takes 3 to 5 hours to fully charge the device. Use the provided USB cable and a properly matched DC adapter. The charging indicator remains lit during the charging process and automatically turns off once the battery is fully charged.
Ensure the amplifier is in Bluetooth mode by pressing the 'M' or 'Mode' button until you hear the 'Bluetooth is waiting for connection' prompt. Also, check that no other nearby device is already paired to the speaker. Keep the amplifier close to your mobile device for a stable connection.