Ultimate 110dB Bike Security Lock with Instant Activation
Safeguard your bicycle with this professional-grade anti-theft alarm lock engineered for maximum protection. When triggered, our ultra-loud 110dB security siren (equivalent to a jet engine) instantly deters thieves and alerts bystanders within 300 meters.
Keyless Convenience & Multi-Access Control
Eliminate physical keys with 4 programmable digital passwords (0000-9999 combinations) for instant one-touch unlocking. 
Extended 150-Day Power Solution
Powered by 3 standard AAA alkaline batteries (exclusive of purchase) delivering 5-month* continuous protection with 2 activations daily. Features real-time voltage monitoring with amber LED warnings 14 days before depletion.
Rainproof Protection
Entire lock is IP44 waterproof (splash-proof certified) – works perfectly in downpours or car washes. Built to handle freezing winter days (-14°F) to scorching summer heat (140°F), keeping smooth operation in coastal areas with salty air or sandy environments.
