Colors: Black with blue light, Black with green light, Black with orange light, Black with pink light Dimensions: 16.8 x 5.5 x 2.5 cm, 6.61 x 2.16 x 0.98 in Power Supply: USB or battery (accepts 3 AA batteries) Note: This product is shipped without batteries. Please install the appropriate batteries or plug in the battery when using. Features: 1. USB power design supports multiple power adapters, allowing for easy connection to a computer, power bank, or charger for greater flexibility and convenience. 2. Built-in white ambient light creates a soft, comfortable sleep environment, minimizing glare at night and improving sleep quality. Room Style 3. High-definition digital display with easy-to-read time and date, supporting both 24-hour and 12-hour formats, suitable for various usage habits 4. Multi-function alarm design with dual alarm settings, providing timely reminders for waking up and important tasks, making your life more efficient and organized 5. Simple and modern design, compact and space-saving, suitable for a variety of settings, such as bedrooms, offices, and dormitories. Beautiful and practical Product Includes: 1 * Multi-function Digital Clock Note: Please allow slight dimensional errors (1-2 cm / 0.39-0.78 inches) due to manual measurement. Actual product received is subject to accuracy. Please also allow slight color variations under different monitors.