4-in-1 Anti-theft Bike Security Lock

Give your bike the ultimate protection with the 4-in-1 anti-theft lock. Designed in a way...
$81.05 $121.92 Free Shipping
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Give your bike the ultimate protection with the 4-in-1 anti-theft lock. Designed in a way that provides vibrations whenever the alarm is locked. Protect your bicycle from crafty-thefts. Instantly produces a super loud alert sound to scare the thief away when certain vibration is detected. Convenient and easy to clip and mount. High-quality, solid casting for long and lasting use.


- HIGH-QUALITY MATERIAL, designed for long and lasting use.
- EXTREMELY DURABLE, meant for rough and repeated use.
- ANTI-THEFT TECHNOLOGY, detects vibrations when suspicious activity is detected.
- LOUD-SOUND, produces the loud sound of 105-120db.
- REMOTE CONTROLLED, remote-controlled for added convenience.
- EASY AND CONVENIENT, easy to clip and mount.
- USB-RECHARGEABLE, can be easily charged anytime, anywhere.
- HIGH-RANGE, works within 10-50m distance.


  • Brand Name: OOTDTY
  • Model: A6
  • Material: Other
  • Size: 8cm x 4.5cm x 2cm
  • Alarm sound: 105-120db
  • Remote control battery: 12V/27A Alkaline battery
  • Battery capacity: USB rechargeable Lithium battery
  • Charging 2-3hours, using up to 15days, up to 60days standby arming.
  • Light beads: COB bright light source
  • The A(red key) is for Flash Model Switch.
  • The B (blue key) is the Calibration code key for reset the light to be functional again when it is needed.
  • Applicable Models: Normal installation is for bicycle saddle bracket with distance 5-7cm(Any bike models and sizes)
  • Material: Plastic
  • Colour: Black

Package Includes:

1 Set Lock

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. 

To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 

You can always contact us for any return question at

Damages and issues 

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items 

Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. 

Unfortunately, we cannot accept returns on sale items or gift cards.


The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

Returns or Cancellations

Once the product is dispatched from our suppliers, the order cannot be cancelled while it's on its way to the customer. Please read shipping policy for the shipping timelines.

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4-in-1 Anti-theft Bike Security Lock
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