Feature: 1. SIMPLE AND STYLISH: The flip digital clock has a simple and stylish design, which matches perfectly with modern home style and creates a cozy ambient. 2. AMBIENT LIGHT DESIGN: Retro flip down clock has an ambient light design with adjustable brightness, suitable for different scenes and needs. 3. SILENT OPERATION: Vintage flip down clock adopts silent flip down mechanism, noiseless operation, ensure your excellent sleep quality. 4. WIDE RANGE OF SCENARIOS: Flip down clock adopts multifunctional design, can be placed on desktop, nightstand and other places to meet different needs. 5. PREMIUM MATERIAL: Vintage flip down clock is made of premium plastic and metal material, durable and easy to clean. Specification: Item Type: Retro Flip Down Clock Material: Plastic, Metal Size: Approx. 21x14.5x9.5cm / 8.3x5.7x3.7in Battery Type: Main Body D Size Battery x 1 (Without Battery Delivery) Base Battery: 1.5V AAA Battery x 2 (Without Battery Delivery). Package List: 1 x Retro Flip Down Clock 1 x Manual Note: 1. With a D size carbon battery, such as for PAIRDEER, for 555, for Huatai batteries, can not use for Nanfu battery, will damage the movement.2. Manual measurement please allow some error.