SKU: 61313495521

HKM-067987 Smart Safety Light for Skateboards and Cycling Helmets

$61.19 $67.99
Save 10%
No.2 Bestseller on tworldvietnam.com >

Pay in installments of $17.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HKM-067987 Smart Safety Light for Skateboards and Cycling HelmetsEnhance your ride with the HKM 067987 Smart Safety Light, the perfect addition for skateboarders and cyclists looking to boost their safety during low light conditions. This innovative light is designed for easy attachment to your skateboard or cycling helmet, allowing you to ride with confidence while staying visible to others. The HKM 067987 Smart Safety Light features bright LED illumination, ensuring maximum visibility wherever your journey takes

Enhance your ride with the HKM-067987 Smart Safety Light, the perfect addition for skateboarders and cyclists looking to boost their safety during low-light conditions. This innovative light is designed for easy attachment to your skateboard or cycling helmet, allowing you to ride with confidence while staying visible to others.

The HKM-067987 Smart Safety Light features bright LED illumination, ensuring maximum visibility wherever your journey takes you. With multiple lighting modes available, you can adapt the light's setting to suit various environments, from dimly lit paths to busy urban streets. Its lightweight and compact design make it a breeze to carry, so you'll hardly notice it's there until you need it.

Installation is straightforward and requires no tools, making it simple to set up before heading out for a ride. Whether you’re cruising through the park or navigating city streets, the HKM-067987 promotes safety without sacrificing style, ensuring you look good while prioritizing your well-being.

Invest in the HKM-067987 Smart Safety Light today and make every ride a safer, more enjoyable experience. With its combination of practicality and sleek design, this safety light is an essential accessory for anyone passionate about skating or biking.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61313495521

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 16 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Austin
Grantham, US
★★★★★ 5
Engaging Read for Beginners and Techies Alike
Format: Paperback
An engaging and accessible exploration of how computers really work. The author breaks down complex concepts into simple, relatable explanations, making topics like binary, logic gates, and basic circuits far less intimidating. For newcomers, it’s a great way to build a foundational understanding of computer theory with just a touch of electrical engineering. As someone with a technical background, I still found it entertaining; the examples and analogies added fresh ways to frame ideas I already knew. It’s the kind of book that can bridge the gap between “I use computers” and “I understand what’s happening under the hood.” Highly recommended for anyone curious about what makes hardware and software tick, whether you’re starting from scratch or just want a new perspective.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 19, 2025
P
Verified Purchase
Peter
Dallas, US
★★★★★ 5
CODE is the book you should get.
Format: Paperback
The best book to enter the field. Grateful that Charles Petzold decided to write it, even happier this was one of the first books I picked up. Recommend to everyone wanting to become a programmer, or just interested in computers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
M
Verified Purchase
Michael Donoghue
Dallas, US
★★★★★ 5
If you only buy one technical computer book, this is it
Format: Paperback
Disclaimer: I owned the first edition for years and read it a dozen times, mainly for pleasure since it’s not only informative but also just enjoyable to read. I’m a professional software architect and have dozens of textbooks on computer science and engineering so I’ve been around the block. This is the kind of book I would buy all for all my friends (if I had more than a couple) and family members (if they were even slightly into computers, which they aren’t sadly). Petzold does an exceptional job at describing digital logic and guides you through building a conceptual CPU from very first principles. I think his bottom up approach is the way to go and has helped me understand complex topics in an extremely simple way. When I’m not reading fiction, this is my go to bedtime reading. The second edition has about 100 more pages than the first and some content has been completely reworked and it’s great. If you ever had even a passing interest in knowing how computers work at a very fundamental level, get this book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2023
Y
Verified Purchase
Yura
Waukegan, US
★★★★★ 4
First programmer?
Format: Paperback
As an ardent reader of the past 1st edition, I was fairly excited to get the latest version. That is, until I encountered the history chapter of the new edition. For one thing, what I do NOT understand in this second edition is the newly added description of August Ada Byron (countless of Lovelace). The author claims it was Babbage who was the first programmer to design the engines, not Ada. I am not trying to start a futile argument here about who has more or fewer contributions, etc. What I am trying to assert here is that it is undisputed that Ada (unless the new evidence arises) left *the very first demonstration* of what this seemingly imaginary machine, which didn't even physically exist, was capable of through her program. Because Babbage designed the engine itself, that doesn't automatically put him in the position of a programmer (despite Babbage being a brilliant engineer/scientist and may have had a simple or detailed program in his mind). However, it was Ada who gave a definite touch to programming concepts that ultimately led to modern-day programming. Ada deserves more recognition than a mere "tutorial writer," and she is certainly entitled to the title she deserves. Other than that, like the previous edition, this book is a must-read for people who are from related/unrelated fields. I always loved the 1st edition, and I would do too with the 2nd. Still, I think history should always be approached with more care, particularly if matters have potential controversies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2023
B
Verified Purchase
Ben Fleury
Massapequa, US
★★★★★ 5
One of the few books worth your time
Format: Paperback
If you want to learn computers, start here. Learning from a historical perspective removes complexity of trying to start with say GPUs - you learn just like computer engineers did, incrementally.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026

recommand products

HKM-4497981 Cross-border Matcha Green Velvet Dog Collar with Gold Buckle, Scalable Sizes XS-XL
54.99
Covercraft C11203PR Custom Weathershield HP Cab Area Truck Cover - Red
370.50
HKM-4137533 Durable Adjustable Dog Collar for Small to Extra Large Dogs - Perfect for Active Pets
49.99
HKM-4104765 Custom Engraved Reflective Dog Collar Tag - Adjustable Nylon for Medium to Large Dogs
66.99
Covercraft C11203PB Custom Weathershield HP Cab Area Truck Cover - Black
362.50