Features: *N-ON anti-lost alarm function. Dial to N-ON position, when children wear the wristband and out of set distance (0-20cm), the receiver will beep and vibrate to alert you for anti-lost use, suitable for children/elderly/pets protection in public places like park, garden, shopping mall and so on, also can be used on valuable objects such as mobile phone, purse, camera, etc. *S-ON object searching alarm function. Dial to S-ON position, when the receiver approaches the object (attached to the transmitter) in set distance (0-20cm), the receiver will beep and vibrate to locate where the object is. *0-20cm effective distance, can be adjusted with the gear on the receiver side. *Lovely fish shape transmitter and mini portable receiver. *Specially designed for children wearing with lock function.