Feature: 1. VERSATILE USAGE: Our number caller is suitable for a range of settings, including restaurants, milk tea shops, hospitals, banks, and more. Expand your business possibilities. 2. CONVENIENT VOICE SPEAKER: Enjoy the ease and accuracy of our full voice prompt system, ensuring seamless and accurate number calling for improved customer service. 3. CLEAR DISPLAY: The large screen provides clear and legible numbers, preventing any missed or incorrect calls, ensuring a fine queue management system. 4. SIMPLE OPERATION: With a straightforward keypad, our number caller allows for easy self collection of orders or navigation to specific areas, enhancing customer experience. 5. CUSTOMIZABLE NUMBER SEQUENCE: Tailor the calling sequence according to your business needs, providing flexibility and adaptability to meet various work requirements. Specification: Item Type: Queue calling system Material: Aluminium alloy, ABS Weight: Approx. 1330g / 46.9oz Host Size: 428x110x30mm / 16.9x4.3x1.2in Screen Display: 3inch LED digital tube Speaker: Two 3 inches 3Ω 5W Receiving Sensitivity: -114dB Installation: Wall mounted, hanging, flat Modulation Mode: Amplitude modulation(433MHz) Keyboard Size: 131x87x23mm / 5.2x3.4x0.9in Keyboard Standby Power: 450mW Frequency: 433MHz . Package List: 1 x Host1 x Keyboard2 x Sticker2 x Power Plug1 x Manual