Product Review

1. Color: Silver
2. Size: 9cm(L) x 2cm(D)
3. Battery: AAA Battery x 1
4. Modes: 7-frenqency

How To Use:

1. Hold down the button for 3 seconds to turn on or off.
2. Each press the button will change a mode.

* Make sure the battery is in the right direction
* Make sure the cap has been screwed tightly