TD113 call watch: the first touch screen watch with a call button on the market - I'm improving. Perfectly suitable and adaptable to various activities, both in nursing and catering establishments. The device is waterproof - IP67. Operating distance up to 80m (in open areas). Can be used together with communication amplifiers to extend the operating distance. Operating time approx. 24 hours. Notification: sound/ vibration/ screen notification. Two-way communication via short messages is possible, quick messages are configured on the computer.