Material: PC+ABS
Size: 4*5*2.5cm/*inch
Weight: 30 g
Applicable pipe diameter: 20-32mm round pipe handlebars
Lamp beads: 1 LED
Volume adjustment: long press the contact to adjust the volume
Battery: 300mAh lithium battery voltage 3.7V
Discharge time: low volume Continuous working time: 4.5-5h
Continuous working time at high volume: 0.6-1h
Charging time: 2-3 hours
Charging indication: red light for charging, green light for full charge
Charging method: USB
Waterproof: IP54
**1. Loud alarm bell: 90-110 DB. Electric bicycle bell is a safety warning bell specially designed for all kinds of bicycles. The bike bell is perfect for most mountain bikes, road bikes, kids bikes and any other bikes and makes a loud bike chime to be heard clearly. NOTE: Both red and blue have warning lights that flash when the bell is touched. But black doesn't.
**2.Easy to install: Easy to fix and remove without tools, the silicone cover has high elasticity and can be adjusted to different diameters, suitable for most bicycle handlebars.
**3.USB rechargeable and touch sensitive: Built-in 300mAh lithium battery. It only takes 2-3 hours to fully charge.
**4.IP65 waterproof rating and silicone cover: good waterproof performance, no need to worry about rainy days. This bicycle bell cover is made of soft silicone material, which will not damage the paint finish of the bicycle, and the waterproof and dustproof design greatly prolongs the service life.
This product includes:
1pc speaker
1pc Fixed bracket
1pc USB charging cable
1pc Install the straps