1. Retro appearance design: Recreate the charm of classic bulbs and add of nostalgia to your space. 2. APP remote control: Easily adjust the lighting settings through your smartphone and control the atmosphere anytime, anywhere. 3. Voice control: Compatible with mainstream smart speakers, you can adjust the lights with just one sentence and enjoy the convenient life brought by technology. 4. 16 million RGB colors and adjustable color temperature: From warm to cold white, to colorful changes, meet all your imaginations of light colors. 5. Energy saving and high efficiency: Low energy consumption brings long-term use experience, and the lumen performance of the bulb is not reduced, bringing a superior lighting experience. Specifications: Color temperature: RGB+2700K-6500K Power: 4.9w5% Luminous flux: 350 Im Lamp cap: E27 Voltage: AC110-240v Wi-Fi standard: WiFi 2.4GHz Lighting angle: 320 Frequency band: 2.402--2.480GHz Maximum radio transmission power: Less than +16dBm Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:As shown Material:ABS Package Contents: 1 * LED bulb Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.