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Welcome to contact Hangzhou Zansong Digital Co., Ltd.
27. Can repairs be made after the warranty has expired?
Yes. We offer repair and parts replacement services at reasonable rates, and we always provide a price quote before proceeding. 08:18:18 query returne
18. The microphone cannot connect to the speaker or receiver?
Troubleshoot in the following order: Check if the microphone is powered on and has sufficient battery (the most common cause). Check
19. How can I fix the microphone feedback (whistling/squealing) when singing?
Audio feedback occurs when sound from the speaker loops back into the microphone. How to fix it: Point the microphone away from the speaker ,
20. Is your Bluetooth connection unstable or disconnecting unexpectedly?
This is usually caused by a low speaker battery, excessive distance, obstructions, or multiple nearby transmitting devices. Please fully charge the ba
21. Speaker won't turn on or charge?
Check the power outlet, charging cable, and charger to ensure they meet the required specifications. Try charging continuously for 30–60 minutes, as a
22. Is the sound crackling or distorted at high volumes?
Try lowering the volume to a moderate level, check if the music file is faulty (try a different audio source), and reduce the bass or treble if they a
23. Is the lavalier microphone experiencing audio lag, dropouts, or interference?
Place the receiver in an unobstructed location nearby, avoid proximity to other 2.4GHz devices (such as Wi-Fi routers or wireless mice), check the bat
24. Is there a shipping fee for warranty service?
No. When a customer contacts the Warranty Center regarding a product covered by the warranty, ZANSONG covers the round-trip shipping costs (both sendi
25. How long does the warranty process take?
The standard processing time is 7–10 business days from the date the device is received (excluding shipping time). If the issue requires specializ
