Thank you for viewing. This is a bedwetting alarm. The receiver will notify you when wetness is detected. The volume is quite loud. (Can also be set to vibration only) It's wireless, so it's easy to use. I used it for an older child, but it seemed they just didn't know the sensation before urinating during sleep, and it improved after 1-2 times, so they stopped using it immediately. The contents are only what is shown in the photos. No cables or instructions are included, so I have set it to "Slightly scratched and dirty". The usage instructions are listed below. Charging is type-C. I have disinfected it with alcohol, but please refrain from purchasing if you are concerned. I hope to sell it cheaply to those who are tolerant of used items and those who want to try it out. Please note that it will be sent in simple packaging using the least expensive shipping method. Depending on circumstances, there may be a change between Japan Post and Yamato Transport. Some price reduction is possible, but please provide your desired price when negotiating. You can also use the price reduction request function. (Comments without a price offer will be considered as not having read the description and I will refrain from replying or transacting) ▹◃┄▸◂┄▹◃┄▸◂┄▹◃┄▸◂┄▹◃ Product Description 1. Wireless bedwetting alarm: The sensor and receiver are wireless, without annoying connecting cables. You can place the receiver by the pillow or bedside, and monitor your child's urination from another room. 2. You can select vibration, sound, or sound + vibration mode. 3. Just clip the urine sensor to the edge of the underwear, monitor the child's urination status, and the alarm will be wirelessly transmitted to the receiver. ▹◃┄▸◂┄▹◃┄▸◂┄▹◃┄▸◂┄▹◃ How to use: 1. ON-OFF is on the back of the receiver. 2. Mode key: Press the SET key on the front left side of the receiver, and the mode key for sound or vibration will flash on the screen, and press the OK key on the right side to confirm. You can choose from 3 modes: sound, vibration, and sound + vibration. 3. The urine sensor must be clipped in a range that can detect urine wetness. ▹◃┄▸◂┄▹◃┄▸◂┄▹◃┄▸◂┄▹◃