Features:Waterproof， but do not put it into the water for a long timeCrenellated strike bezel for enhanced self-defense of these allegations is equipped with advanced security features， including lithium batteries， power batteries， alkaline batteries manual selection， automatic charge off and built-in temperature control.Chargeable 1，2，3， or 4 of the battery time.Fully automatic selection Refresh (Condition) Function.Global voltage capability - 100V~240V AC 50 ~ 60 Hz.Fully able to charge all rechargeable battery capacity all.Even the future will be charged a higher capacity.Automatic analyzes each battery - to determine before the battery charging status.Automatic detection of faulty battery.Automatic charging level detection - termination once your rechargeable battery is fully charged.Automatic Temperature Monitoring - as your rechargeable batteries charge - prevents heat damage. Automatic shut off safety timer function - protection from over charging your rechargeable batteriesManually select alkaline battery detection - Rechargeable non-rechargeable batteries (alkaline batteries section).The AC adapter does not require heavy - power battery charger built into the sparkle.