Features: . Fashion and , simple and useful Mini size travel, battery powered, lightweight and portable, nice for travel The Dual Doorbell includes a mini-hammer offers extra loud ringing, which is ideal for deep backing, mild hearing loss, hearing impaired even deaf. Without a snooze function, good kids train their alarm clock and wake up for people who have trouble waking up. A good choice for decoration, perfect as a special gift Specifications: Power Source: AG13 Button Battery (Battery Included) Color: Red/Blue/White/Black/Pink/Green Material: Metal Size: 5.5x 8cm/2.17" x 3.15" Quantity: 1PC Note: 1. Transition: 1cm=10mm=0.39inch 2. Please allow 0-3cm error due to manual measurement. Pls make sure you don't mind before you bid. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1PC x Alarm Clock (Battery Included)