---
product_id: 513180474
title: "Smart Bluetooth LED Backpack with Colorful LED Sign Panel and Programmable, DIY Laptop Daypack Bag,Black (Medium 21L,with Rain Cover)"
brand: "welaso"
price: "€ 256.17"
currency: EUR
in_stock: true
reviews_count: 8
category: "Welaso"
url: https://www.desertcart.de/products/513180474-smart-bluetooth-led-backpack-with-colorful-led-sign-panel-programmable
store_origin: DE
region: Germany
---

# Water-resistant polyester nylon 21L large dual-layer capacity 64x64 full-color LED matrix Smart Bluetooth LED Backpack with Colorful LED Sign Panel and Programmable, DIY Laptop Daypack Bag,Black (Medium 21L,with Rain Cover)

**Brand:** welaso
**Price:** € 256.17
**Availability:** ✅ In Stock

## Summary

> 🎨 Light up your commute with the backpack that speaks your style!

## Quick Answers

- **What is this?** Smart Bluetooth LED Backpack with Colorful LED Sign Panel and Programmable, DIY Laptop Daypack Bag,Black (Medium 21L,with Rain Cover) by welaso
- **How much does it cost?** € 256.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/513180474-smart-bluetooth-led-backpack-with-colorful-led-sign-panel-programmable)

## Best For

- welaso enthusiasts

## Why This Product

- Trusted welaso brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ergonomic & Secure:** Padded straps, anti-theft features, and trolley compatibility ensure comfort and peace of mind during daily hustle.
- • **Spacious & Organized:** 21L double-layer design with 6 compartments fits laptops up to 15.6", tablets, and all your essentials effortlessly.
- • **Built for All Weather:** Durable, water-resistant polyester nylon fabric with included rain cover keeps your gear safe rain or shine.
- • **Seamless Smart Control:** Intuitive app lets you update animations, text, and images on the go—turn heads everywhere you commute or explore.
- • **Express Yourself Boldly:** Customizable Bluetooth LED panel lets you broadcast your vibe, slogans, or promos in vibrant full color.

## Overview

The Welaso Smart Bluetooth LED Backpack is a cutting-edge 21L laptop daypack featuring a programmable 64x64 full-color LED sign panel controlled via smartphone app. Crafted from water-resistant polyester nylon, it offers dual-layer storage with multiple compartments, ergonomic padded straps, and anti-theft design. Perfect for professionals and creatives alike, it transforms your daily carry into a dynamic, personalized billboard for work, travel, or leisure.

## Description

Product Description LED Backpack with Programmable , DIY Laptop Backpack /School Bag Welaso New Fashion Smart LED Backpack If you are looking for a backpack, I will recommend this new fashion LED backpack to you. It is no longer a traditional backpack, but a more interesting and creative backpack. For example, it can be used as a portable billboard,advertising screen, holiday wishes, slogans,business promotions,commuting,cycling, casual bag, hiking backpack,showing your personality and creativity, or even surprise gifts for friends.this LED backpack is perfect for you,you will love it. Lots of interesting function in app, like graffiti. APP support language English, French, Spanish, Chinese, Japanese, German, Portuguese, Russian ... N otice Y ou should have a power bank that has 2A output (USB Type -A). If not, need to buy it separately, because it is not included in this product Smart DIY Backpack, Suitable for Cycling Bag, Casual Bag, Bag, Laptop Bag,Daily Commuting Bag etc. Advantage This backpack has a built-in 64*64 Bluetooth high brighten LED screen, Programmable LED Sign which support text,picturem,animations Ergonomic carrying design: the back wrap design, comfortable and widened, and padded shoulder straps, effectively reduce shoulder pressure, easy travel; Use waterproof fabric to protect the LED screen and walk freely; Large-capacity,Multiple storage spaces. can hold 15.6-inch laptops; also can be carried on airplanes; Lots of interesting function in App, like graffiti. APP support multiple language: English, French, Spanish, Chinese, Japanese, German, Portuguese, Russian ... Specifications Backpack has built-in 64*64 bluetooth high brighten LED screen Programmable LED Sign Support text,picturem,animations Use waterproof fabric to protect the LED screen and walk freely Can be carried on airplanes; Basic Info Dimensions: 16.5 x 12.6 x 6.3 inches Color: Black Material: Polyester Nylon/TPU Net weight: 2.7 pounds Capacity: 21 liters LED Screen size: 9.84*9.84 inches Support points: 64*64 full-color dot matrix Power supply: Power Bank with 5V/2A output(USB Type -A ) Communication method: Bluetooth Packing List 1 x LED Backpack (Not include power bank) 1 x Waterproof rain cover 1 x Manual Cheerleading Backpack Support your favorite teams and stars Display your cheerleading slogan on the backpack Holiday Gift backpack As a holiday gift for family or friends Celebrate Christmas, Halloween, Thanksgiving, Valentine's Day,Happy New Year together Portable Billboards Backpack Discount promotion Stores billboard DIY Backpack with Programmable Showing your personality and creativity DIY impressive backpack with programmable. Change the backpack's content by your mobile bluetooth APP, so easy Laptop Bag / Bag / Casual Bag Easy to store 15.6 inches laptop,tablet etc. Daily commuting for work，class, especially at night, do not let yourself be in a darkstate Suitable for daily commuting, traveling, cycling, outdoor adventure Outdoor Cycling Bag Effectively remind the driver of the rear vehicle to avoid being in the blind spot Especially when outdoor at night, LED backpack display will be clearer and more attractive APP programmable Use smart phone APP to design your own artwork, which needs to be displayed on the LED backpack 1 x LED Backpack (not include power bank)

Review: Awesome gift - I bought this backpack for my 8 year old son for Christmas as one of his wow gifts after he saw something similar on Vat19 and expressed interest in having one. The battery pack is not included- you have to buy that separately. The one we got has an awesome battery life and I actually only charged it once right before Christmas and now almost an e tire month later it still has more than 50% charge. The app takes a few minutes to learn (app instructions are grossly lacking) but not difficult to figure out by just playing around with it for a while. We actually change the gifs and images almost daily and it’s a quick process. The backpack could be a bit more spacious inside and the image can look a bit blurry in spots where there is a little gap between the led’s and the protective cover, but I still give this 5 stars. My son absolutely loves it and loves showing it to his friends every day so they can see the new pictures. It lets him express himself and gives us something creative to do together.
Review: Amazing Customer Service - I had issues with the app uploading the “Free Type,” which is a “Text” you want to put on the screen. I messaged customer service and they gave me a huge deal, for my troubles! I did not have issues with uploading videos! That was my only complaint, but thanks to David for working with me! The quality of the backpack is very good! The style and storage capacity! The function of the videos work very well! I highly recommend, just be cautious on the app!

## Features

- 【Suitable Scenarios】: This backpack has a built-in Bluetooth full-color LED screen. It is a programmable sign for portable billboards, advertisements, holiday wishes, slogans, and business promotions. Suitable for commuting, traveling, cycling, outdoor adventure, work, causal bag, hiking backpack,or even surprise gifts for friends.
- 【Easy to Use】 3 steps: Plug in the power bank --〉Pair the Backpack to your smartphone device by Bluetooth connection--〉Use the APP to control displayed images, animations or text right on your Backpack. It's so easy!
- 【Highlight Features】: 64*64 High brighten dot matrix screen,supports text, pictures and animations display. Large capacity,Double layer independent,Water Resistant, Zipper Closure,Trolley Box Nesting, Anti-theft, Durable Polyester nylon material,Mesh back, High Elastic Pad design
- 【Space &Size】:Backpack size: 16.5*12.5*5.9 inches,large capacity(21L volume) with double layer storage，and there are many compartments in each layer,easy to store like water bottle,book,file,wallet,pens, phone, tablet, power bank, and 15.6 inches laptop etc.
- 【Customer Service】: Don't worry about after-sales service, if you have any issues or need technical support ,please feel free to contact us. as we will continue to update and improve the App to make it more interesting and multi-functional,pls remember to update your App and LED board program to the latest version
- THIS ITEM IS NOT INTENDED FOR USE BY CHILDREN 12 AND UNDER.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BJQRDHPV |
| Age Range Description | Adult |
| Apparel Closure Type | Zipper |
| Apparel Fabric Stretch | No Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Backpack Design | Laptop Backpack |
| Best Sellers Rank | #2,440 in Laptop Backpacks |
| Brand Name | Welaso |
| Color | Medium 21l Led Backpack With Rain Cover |
| Compatible Device Size Maximum | 15.6 Inches |
| Customer Reviews | 4.3 out of 5 stars 133 Reviews |
| Embellishment Feature | Cord |
| Fit Type | regular |
| Fit to Size Sentiment | fits_adults |
| Item Dimensions D x W x H | 5.9"D x 12.5"W x 16.5"H |
| Item Shape | Rectangular |
| Item Type Name | LED T3 backpack, Black |
| Item Weight | 2.7 Pounds |
| Lining Description | Nylon |
| Manufacturer | Welaso |
| Material Type | Polyester |
| Model Name | Welaso T3 Led Backpack |
| Number Of Pockets | 6 |
| Number of Compartments | 6 |
| Number of Items | 50 |
| Other Special Features of the Product | Anti-Theft, Laptop Compartment, Lightweight, Tablet Compartment, Water Resistant |
| Outer Material | Polyester |
| Pattern | Polka Dots |
| Pocket Description | Utility Pocket |
| Product Care Instructions | Dry Clean Only |
| Product Style | Diy Led Laptop Backpack |
| Recommended Uses For Product | Sport |
| School Type | High School |
| Shell Type | Soft Shell |
| Size | Medium |
| Sport Type | Hiking, Travelling |
| Storage Volume | 20.2 Liters |
| Strap Type | Adjustable, Handle(s), Shoulder Strap |
| Style Number | Welaso-LED-Backpack-T3 |
| Subject Character | Cartoon |
| Theme | Motorcycle |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |

## Images

![Smart Bluetooth LED Backpack with Colorful LED Sign Panel and Programmable, DIY Laptop Daypack Bag,Black (Medium 21L,with Rain Cover) - Image 1](https://m.media-amazon.com/images/I/616L7kekvHL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome gift
*by T***E on January 23, 2022*

I bought this backpack for my 8 year old son for Christmas as one of his wow gifts after he saw something similar on Vat19 and expressed interest in having one. The battery pack is not included- you have to buy that separately. The one we got has an awesome battery life and I actually only charged it once right before Christmas and now almost an e tire month later it still has more than 50% charge. The app takes a few minutes to learn (app instructions are grossly lacking) but not difficult to figure out by just playing around with it for a while. We actually change the gifs and images almost daily and it’s a quick process. The backpack could be a bit more spacious inside and the image can look a bit blurry in spots where there is a little gap between the led’s and the protective cover, but I still give this 5 stars. My son absolutely loves it and loves showing it to his friends every day so they can see the new pictures. It lets him express himself and gives us something creative to do together.

### ⭐⭐⭐⭐⭐ Amazing Customer Service
*by T***D on January 15, 2025*

I had issues with the app uploading the “Free Type,” which is a “Text” you want to put on the screen. I messaged customer service and they gave me a huge deal, for my troubles! I did not have issues with uploading videos! That was my only complaint, but thanks to David for working with me! The quality of the backpack is very good! The style and storage capacity! The function of the videos work very well! I highly recommend, just be cautious on the app!

### ⭐⭐⭐⭐⭐ So cool and easy app!
*by B***S on May 30, 2026*

Such a cool backpack. I heard a lot of comments about the app but I had no issues linking it to my iPhone 12 Pro Max. The gifs and picture downloads in app are awesome and found basically everything I wanted to put on the backpack. Very easy and self explanatory

## Frequently Bought Together

- Welaso Smart Bluetooth LED Backpack with Colorful LED Sign Panel and Programmable, DIY Laptop Daypack Bag,Black (Medium 21L,with Rain Cover)
- INIU Portable Charger, Slimmest 10000mAh 5V/3A Power Bank, USB C in&out High-Speed Charging Battery Pack, External Phone Powerbank Compatible with iPhone 16 15 14 13 12 Samsung S22 S21 Google iPad etc
- Miady 2-Pack 10000mAh Dual USB Portable Charger, USB-C Fast Charging Power Bank, Backup Charger for iPhone 15/14/13, Galaxy S23/22, Pixel and etc

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**Shop now:** [https://www.desertcart.de/products/513180474-smart-bluetooth-led-backpack-with-colorful-led-sign-panel-programmable](https://www.desertcart.de/products/513180474-smart-bluetooth-led-backpack-with-colorful-led-sign-panel-programmable)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-07-15*