This is a Zexon guide light. It is extendable, allowing for length adjustment. It has a built-in whistle, so you don't need to carry one! It sounds with the push of a button! --- ● Sakaken Co., Ltd. / ZEXON / Safety Supplies / Security Supplies ● Whistle-equipped Extendable LED Signal Light ● For guiding traffic/personnel at construction sites and event venues, for signal lights during disasters, for patrols such as crime prevention, ● With a strap & magnet on the bottom of the main unit ● Extendable for easy carrying ● Equipped with a whistle, so you can alert others to danger ● Can switch between 3 patterns: "Red flashing", "Red steady", "White LED hand light", and "Off" [Specifications] ・Power supply: 3 x AA batteries (sold separately) ・Light source: 6 red LEDs, 1 white LED ・Brightness: (Red LED) approx. 30 lumens, (White LED) approx. 50 lumens ・Lighting patterns: "Red flashing", "Red steady", "White LED hand light", "Off" ・Continuous operating time: approx. 50 hours ・External dimensions: 50 x 335-500mm (light emitting part: 45 x 200-265mm) ・Weight: 214g ・Materials: Main body PC, Grip ABS ・Waterproof performance: IPX3 ・Whistle sound level: 100dB ・Country of origin: China Construction Security Part-time job Whistle Whistle Security baton Guide light Extendable