High Sensitivity-- A reliable sensor detects the first drop of urine and alerts the child as soon as bedwetting occurs. You don't need to set an alarm clock to wake up your child who does not need to urinate. Effective bedwetting training for potty training. It is an essential tool for parents who want to help their children overcome bedwetting and promote independent toileting. USB Rechargeable & 3 Working Modes-- Built-in 400mAh rechargeable lithium battery. And 20 days of normal use when fully charged, you won't have to worry about constantly replacing batteries. 3 working modes including sound + vibration, sound only, and vibration only ( All modes are accompanied by blue flashing lights ). 3 sounds can be selected and 3 volume levels (30dB, 60dB, 90dB) to cater to different needs. Suitable for children over 5 years old, and deep sleepers. Two Ways To Use-- Our bedwetting alarm has 2x sensor clips (3.6ft (100cm) long cord and 1ft (30cm) short cord), two ways to use for different usage preferences. Wired bedwetting alarm monitors are more sensitive and stable, and can avoid interruption or instability during use.