Child calling watch from school device for calling students from school

Product specifications and features: Small easy-to-use and portable student calling device. Battery operated and rechargeable via USB port. The charging cable is of SB type and included with the device. Wireless device safe for students and suitable for boys and girls. Each student calling device works independently without any conflict. The transmission range reaches up to 200 meters in open air. Note: The device has been tested and the maximum distance it works at is 50 meters when there are obstacles, and of course, 50 meters is sufficient and exceeds the intended purpose. The device emits a sound alert and vibration to call the child through the student calling watch, and you can select either one or both. The watch is lightweight, and the strap is comfortable on students' wrists. The watch is safe and does not contain a chip or camera. The student calling watch is made of high-quality materials, manufactured according to global specifications and standards (such as quality and compatibility with various chargers and other international standards). The student calling watch is the ideal solution for quickly evacuating students.