KOSO, X-Claws clip-on grip heaters

Quick clamp-on / off style grip heaters. No special or complicated heated grip set installation required. Use them when needed, remove them when not. Easily connects to any regular USB port of 2.1A output or higher. - Dimensions: 94 mm x 34.7 mm - Works with grips with 31 to 35 mm diameter - Working voltage: DC 5 Volt - Consumed Power: 10 Watt - IP Level: IP54 (non-waterproof) - Effective working range: -10 to +60°C - Weight: approx 86 grams - Wiring length: approx. 73cm - USB port recommended specs: Output above DC 5 V / 2.1A