Panel description: power switch / volume, microphone
socket;audio amplifier button ; whistle button
2. Microphone :
Model No: DZ-518G
Frequency: 300-3 Kilocycle
an integrated device, containing MIC, whistle, audio amplifier, enlarge / diminish sound source. With the most advanced MCU control, the sound from such siren hears consistently pure without any noise. According to the investigation the sound from such siren can be heard within 1km in the ocean.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can't offer you a refund or exchange.