Up to two years of battery life

Offers high level of support

Legs offer optimal stability

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Helps prevent racing lanes from dragging across pool edges

Robic Electronic Whistle/Personal Alarm Default Title:Default Title Up to two years ofThe Robic M619 is a high quality, rugged, impact resistant handheld Electronic Whistle which emits a loud, clear signal rated a volume of 120 dB. The M619 is ideal for all field, court and indoor venues. Features Fits comfortably into the palm of your hand and operates with a Single Hand. Extreme Ease of Use allows you to keep your eyes on the action and activity. Hygienic, Washable, Reusable provides sanitary, safe use for multiple events.