• Design with small size and modern fashion look.built in boost circuit with loud sound reached 100-120 db
• With rechargeable 280 mAh ,used more convenience .USB cable charge 1.2 hours full charge.
• Contains USB cable,1.2 hours full charge, one charge have 2000 times bell can work about 20-30 days
• Have 4 sound modes, sounds,horn sounds,alarm sounds,tram sounds,dust resist,IP 65 waterproof level
• Easy to install:put the silicone strap fixed on the handle.suit for 0.86"-1.25"(22.2-31.8 mm )diameter handlebar

1 Set Bicycle Electric Horn