This item is out of stock.

LEGO MINDSTORMS ROBOTICS INVENTION SYSTEM 2.0 #3804 OPEN BOX POSS INCOMPLETE

18th Adventure Sales
(6833)
Seller's other items
Contact seller
US $49.99
or Best Offer
or 4 interest-free payments of $12.50 available with
Condition:
New
Out of Stock2 sold
Pickup:
Shipping:
US $28.96 USPS Ground Advantage®.
Located in: Savannah, Georgia, United States
Delivery:
Estimated between Sat, Nov 8 and Thu, Nov 13 to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Payments:
       .
Earn up to 5x points when you use your eBay Mastercard®. Learn moreabout earning points with eBay Mastercard

Shop with confidence

eBay Money Back Guarantee
Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab
Seller assumes all responsibility for this listing.
eBay item number:376133287190
Last updated on Sep 11, 2025 16:10:32 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
LEGO
LEGO Theme
MINDSTORMS
LEGO Set Number
3804
LEGO Set Name
Robotics Invention System 2.0
LEGO Subtheme
MINDSTORMS
Interests
STEM
Category

Item description from the seller

About this seller

18th Adventure Sales

99.9% positive feedback•9.2K items sold

Joined Nov 2000
Visit storeContact

Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.7
Shipping speed
5.0
Communication
5.0

Popular categories from this store

See allcategories
CollectiblesHealth & BeautyBabyHome & GardenClothing, Shoes & AccessoriesToys & HobbiesSports Mem, Cards & Fan ShopDolls & Bears

Seller feedback (3,433)

All ratingsselected
Positive
Neutral
Negative
  • m***n (390)- Feedback left by buyer.
    Past month
    Verified purchase
    She arrived safe and sound, and exactly as she was described and pictured. The damage packaging made no difference because she was intended for an OOAK, and I appreciate the sellers fairness in price because of that‼️ Overall she's absolutely perfect, and will be replacing her current stand in on @therealmorganthomas on Instagram❤️
    DC Super Hero Girls WONDER WOMAN 12" NEW DAMAGED PACKAGING (#375284360428)
  • n***a (27)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Older fashionista barbie in excellent shape. Seller indicated box damage but it was minor and did not negatively impact the doll at all. Good price, arrived quickly, packed well. This seller has a lot to choose from and is recommended.
    2016 Barbie Fashionistas 46 Power Print Mattel DVX68 NEW DAMAGED PACKAGING (#374867307409)
  • _***6 (202)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Very good seller. Great communication!!!!! Sent me the wrong product size but quickly corrected the error. Mistakes happen but I’m so happy they have great communication and fix errors quickly. Thanks again. Will buy from again.
    Bundle of 2 Young Living STRESS AWAY Essential Oil Blend 15ml NEW OLD STOCK (#376226973933)
See all feedback

Product ratings and reviews

Learn more
4.9
8 product ratings
  • 7 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Durable

Would recommend

Entertaining

Most relevant reviews

See all 4 reviews
  • by berandomsenm
    Dec 12, 2017

    Still Works

    Here's the tips I have for programming the RCX 2.0 Windows XP 32 Bit Virtual Machine using Parallels or Virtualbox You can find the iso of the Robolabs online to install it Getting the Driver the IR tower is the most difficult task, however, i just looked it up on line in drivers tab "online", and it found it. despite it being windows xp, so actually pretty simple. Don't get Windows 8SE, the graphics that come with the VM don't meet the requirements for the Lego Robolabs software to program the RCX 2.0.

    Verified purchase: YesCondition: Pre-OwnedSold by: victordn

  • by sacari1
    Aug 27, 2022

    Excellent beginners robotics

    This set is outdated but is a perfect starter for the beginner robotic enthusiast

    Verified purchase: YesCondition: Pre-OwnedSold by: thatresellerguy

  • by aire-5140
    May 18, 2021

    Great product, nicely organized! Thank you.

    Verified purchase: YesCondition: Pre-Owned

  • by felihejime
    May 17, 2024

    EXCELENTE PRODUCTO AMPLIAMENTE RECOMENDABLE

    EXCELENTE PRODUCTO AMPLIAMENTE RECOMENDABLE

    Verified purchase: YesCondition: Pre-OwnedSold by: andy_lego

More to explore :