?The product adopts liquid sensing technology and it's really worth your money no matter for practical or decorative use.<br><br><strong>Features:</strong><br>Adopting liquid sensing technology£¬ it will light up automatically when you pour any kind of drinks into it.<br>Powered by 2 replaceable lithium batteries£¬ it's very easy to remove the battery cover with a coin.<br>The beverage in the glass looks very beautiful and romantic when it lights up.<br>Perfect for drink competition£¬ it's very clear to see who is the first to drink up with the signal of light.<br>It's really a perfect decoration to create happy atmosphere in occasions such as parties£¬ pubs£¬ etc.<br><br><strong>Specifications:</strong><br>Battery: 2 * CR2025 batteries (included)<br>Light color: Mix color<br>Material: Acrylic<br>Capacity: 200ml<br>Sensing type: Liquid sensing<br>Lifespan: About 3 years<br>Item color: Transparent<br>Item size: 8.0 * 6.8cm / 3.1 * 2.7in (H * D)<br>Item weight: 100g / 3.5oz<br>Package size: 8.0 * 8.0 * 9.5cm / 3.1 * 3.1 * 3.7in (L * W * H)<br>Package weight: 128g / 4.5oz<br><br><strong>Package list:</strong><br>1 * Light-Up Wine Cup