The Retekess TD164 Wireless Calling System is ideal for use in restaurants, cafes, and large facilities such as hospitals and places of worship. The device provides an easy and efficient communication experience for both staff and visitors, and features advanced capabilities that make it the optimal choice for facilitating the service process and making it more organized. Features: Long Range 🚀: Operates with FM technology and has a range of up to 800 meters in open areas. Multiple Alert Modes 🔔: Vibration + Buzzer + Light or Vibration + Light only. Alert Cancellation ✋: Features a cancellation button for guests after they receive the call. Touch Control Screen 🖲: Equipped with a one-touch mute button for easy operation. Dual Charging Mode 🔌: Equipped with two Type-C ports on the control panel and one port on the charging base. Long-Term Operation 🔋: Built-in 300mAh lithium battery lasts up to 30 hours of continuous use after a full charge of 4 hours. Ability to Add Multiple Receivers 📶: The transmitter can be paired with up to 998 receivers. Compatibility with Other Devices 📲: Compatible with TD161 and TD183 calling systems, allowing for shared use of control panels.