Stay Safe and Protect Your Ride
Threo bike horn keeps your journey worry-free every day. Make every trip secure, alerting others instantly on busy streets. Thieves think twice before approaching your bicycle, giving you peace of mind. Simple controls help everyone use it right away.
Powerful Sound
Pedestrians and drivers hear you clearly from far away. Accidents are avoided because everyone notices your presence quickly.
Anti-Theft Security
Strong alarm stops unwanted hands touching your valuable bicycle. Immediate loud alert means your ride is protected, even when you are away.
Easy USB Charging
Charge anywhere, in minutes, with a computer or power bank. Never worry about buying batteries or running out of power during rides.
Megan R.
I put this horn on my commuter bike and cars finally notice me before I reach the busy corner
Robert H.
My teenage son borrows my bike and the loud horn makes me feel better about his rides home
Owen L.
The horn is small on my handlebar but loud enough that drivers look up before I pass
Daniel K.
My wife uses the alarm when she parks at work and it gives us both a lot more peace of mind
Nina P.
After adding the alarm I feel calmer leaving my bike locked by the train station during errands
Jason M.
I bought this for my dad and he called me after one ride saying people moved aside right away
Chris B.
I ride near school traffic every morning and this horn helps me get seen without shouting or waving
Angela D.
I charged it at my desk before work and it was ready for my ride home in no time
Laura T.
The alarm scared off someone touching my bike outside the shop and I heard it clearly from inside
Priya S.
Charging from my power bank is easy and the horn stayed ready through a full week of evening rides