SPECIFICATIONS: 978 Hand Held Baton… High voltage electric shock // Highlight illumination . 1. Source voltage: 7.2 V. 2. Current consumption: <1.9A for electric shock ; <0.8A (for illumination). 3. Size: Φ48×185mm. 4. Environmental temperature: -5°F-113°F. 5. Inner packing Measurement: 142×29×50mm. 6. Gross weight: 220g .