Ever felt scared of danger while riding at night or in dim environment? This safety light can be a wise solution. It makes you visible at night by indicating sign if you attach it to your cycling backpack. Get one for your safety and others.<br /><br />Features:<br />Cycling safety LED light indicates L/R/Forward/Emergency/Standby for safety at night or in dim environment.<br />With adjustable straps and snap buckle? easy to adjust length according to your height and take on/off shoulder.<br />The back padded sponge and pocket are designed for added comfort and convenience.<br />Water-resistant and reflective design? receiver is covered by nylon and oxford cloth and sewn with reflective stripes on it?<br />Wireless remote control? within area of 3?choose sign via mini transmitter(controller) powered by 2 CR2032 batteries. (batteries aren&rsquo;t included)<br />Mounting stripes for transmitter(controller) can be installed on head tube? convenient to control sign while riding.<br />Built-in rechargeable lithium battery? charged via USB cable without worry of changing battery frequently.<br />A good company for riding? hiking? or other adventures.<br /><br />Specifications:<br />Transmitter<br />Frequency: 2.4GHz<br />Transmission distance: 3m / 9.8ft ( in the open space)<br />Material: ABS<br />Waterproof grade: IPX-5<br />Power: 2 * CR2032 (not included)<br />Size: 6 * 4 * 2cm / 2.4 * 1.6 * 0.8in<br />Weight: 28g / 1oz<br />Receiver<br />Control board material: PCBA<br />Cloth material: Nylon + Oxford cloth<br />Battery: 3.7V? 850mAh lithium battery<br />Charged: DC 5V 500mA<br />Length: 20 - 75cm / 7.9 - 29.5in<br />Size: Approx. 25 * 24.5 * 1.5cm / 9.8 * 9.6 * 0.6in<br />Weight: 161g / 5.7oz<br />Package<br />Size: 30 * 27 * 4.8cm / 11.8 * 10.6 * 1.9in<br />Weight: 452g / 1Lb<br /><br />Package List:<br />1 * Backpack Light<br />1 * Controller<br />4 * Mounting Stripe<br />1 * User Manual (English)<br><img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-9-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-15-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-1-1c8e_1_.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-13-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-1-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-6-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-11-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-8-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-14-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-3-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-4-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-12-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-10-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-5-1c8e.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/y/0/y0283-7-1c8e.jpg" /><br>