WHY CHOOSE CSB28?
We have designed and manufactured some hot sell outdoor ultrasonic dog bark control devices CSB10 / CSB12 / CSB19 / CSB20 ects. and handheld dog deterrents like CSB26 ects on the market these years.
We make this updated version CSB28 from customer's feedback and suggestions on below:
1. Battery indication and alarm: no display and indication to show the battery or no low battery alarm for the most models on the market now. CSB28 adds this function.
2. Working indication: It is a little difficult to judge if the device is working and ultrasonic sound is emitted for the classic models. This updated version CSB28 has display to show them.
3. Adjustable Frequency and Frequency Conversion: Classic models only provide 1 fixed frequency point from 25-30KHZ. But the best effect is different adjustable frequency point within this wide frequency and choose the appropriate one.