Perfect for dog walking and other activities. [Specifications] ・Maximum brightness: 30 lumens ・Continuous lighting time: 3 hours 15 minutes ・Light source: LED (LED color variations may occur) ・Batteries used: Coin-type lithium battery CR2032 x 2 ・Body size (approx.): Width 28mm x Depth 20mm x Height 60mm ・Weight: 18g (without batteries) [Product Name] Energizer LED Wearable Light 3 Light Modes, Perfect for Night Running (Maximum Brightness 30lm / Maximum Lighting Time 3 hours 15 minutes) FW2C [Product Description] Size: Width 2.8 x Depth 2 x Height 6 cm Batteries used: Coin-type lithium battery CR2032 x 2 Warranty period: 1 year Included: 2 x CR2032 coin-type lithium batteries (for testing) Waterproof performance: IPX4 (Resistant to water spray from all directions for 10 minutes) Body weight (kg): 0.018 ● Clip for easy attachment to clothes, bags, and backpacks ● 3 modes: steady on, red light, red flash ● Waterproof design: IPX4 rating ● Compact and lightweight design