Features:

• Simple Appearance Minimalist Design
• Large decibel 120 decibels
• One-key alarm will sound at a shock, preventing thieves and theft
• 180 days long standby time with USB charging, can be fully charged in 20 minutes, supports computer, power bank, mobile phone charger head for charging, can be used for 40 days by pressing 100 times a day
• Four kinds of ringtones Double-click the speaker to switch the sound effect
• It's not just an alarm, it's a car bell for security and anti-theft
• Tool-free installation and fixing straps are more convenient and quick to install and remove

Key usage:

• Left Key: Lock, long press the left key to enter the lock state, sensing shake automatic alarm.
• Middle Key: Horn Key, single ring, double-click to switch 4 ring tones.
• Right Key: unlock, want to unlock only long press the right key to unlock.

Package Included:

• 2Pcs*Bike Bell