School bell watch black

Basic components: wristwatch: touchscreen or simple buttons with control options. Remote control: portable device with a prominent button (red color) to request assistance. Antenna: to improve signal reception over a larger range. Uses: Medical: to alert nurses or doctors when needed in hospitals or homes. School: to call children from schools by guardians. Communication range: the device usually operates with wireless technology based on radio frequency (RF) and reaches up to 300 meters. Battery: the watch is equipped with a rechargeable battery and the remote has a replaceable battery. Ease of use: simple interface allowing anyone to request help easily with a press of a button. Additional functions: sound or vibration notifications. Custom icons on the screen to show connection status. Multiple options to customize alerts.