NIB- never used Medium: 15 -21.5” Width: 1” 3 Lighting Modes (change with 1 click) Static mode (continuous light) Rapid Flash Slow Flash Package Includes 1 X Collar 1 X Rapid charging cable 1 X Instruction manual Heat welded insulated wiring allows collar for use in all weather conditions Quick charge USB cable and port allows leash to fully charge within 1 hour Smart charge technology signals you when battery is fully charged