Stay Safe and Heard Every Ride
Feel confident cycling anywhere using Threo Horn. Motorists and walkers always notice you first, keeping everyone out of danger. Quick USB charging means it is ready when you need it most. Rain or shine, the sturdy build keeps working without fail.
Powerful Alert
A single press reaches 120 decibels, making your signal clear. Everyone around hears instantly, so accidents are easily prevented.
Anti-Theft Security
Activate alarm mode in seconds to guard your cycle. Any attempt to move it triggers a loud warning, stopping thieves fast.
Weatherproof Durability
Rain will not affect performance, thanks to a solid build. The Threo Horn lasts years, saving you hassle and replacement costs.
Sound Level:
120 dB
Sound Modes:
4
Alarm Function:
Yes (Anti-theft)
Power Supply:
USB Rechargeable
Charging Time:
20 minutes
Battery Life:
30–40 days
Standby Time:
180 days
Number of Rings:
3000–4000 times
Nathan L.
Night rides feel less stressful. The tone cuts through music, traffic and wind, and the alarm gives me peace when I lock up near bars.
Hannah B.
I live on a rainy coast and this horn has handled many wet rides. Still blasts just as strong, buttons work fine in the cold.
Grace J.
I was surprised how small yet strong this horn is. Even with headphones on, my friends ahead hear me and move aside on shared paths.
Julia M.
My daughter just started cycling to college. I added this horn and she feels much more confident in busy traffic and at crowded crossings.
Patrick O.
Had it for months now, still solid and reliable. Ridden through heavy rain and potholes, the mount holds tight and the sound stays sharp.
Olivia C.
Bought this for my husband after a close call with a car. Now he says drivers actually look before turning because they hear him clearly.
Isabella Q.
I’m not a loud person, so this horn helps me a lot. I just press once instead of shouting at drivers who drift into the lane.
George E.
Bought one for my dad’s e-bike. His hearing isn’t great, but he loves how easily people notice him, especially on those quiet country roads.
Daniel K.
I charge it once a week and it easily lasts all my city rides. One press is enough to cut through traffic noise every time.
Jason H.
Mounted it on my gravel bike for weekend rides. Coming down fast hills, I can warn hikers early and they step aside without surprises.