Name: Enrichment for Grades 9-12 (3-Pack)
Brand: KiwiCo
SKU: HRICH
Price: 94.95 USD
Availability: OutOfStock
Rating: 5 (9 reviews)

Wire up a pair of headphones and jam to your favorite music! Build the headband, rig up the speaker drivers, and experiment with stereo sound. Explore how speakers and other electroacoustic transducers turn electricity into sound, then learn about the engineering history that made modern headsets possible.

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Stereo Headphones

Headphones

The grandkids love this kit. It is something they can build and use!  

This one is great especially if your kids have a tablet. The only thing is the ear pads don’t have a good wear life since they just slip on so maybe some double sided tape to keep them on with constantly taking headphones on and off over time.

Wonderful activity. 12 yr old kiddo LOVED it. We were able to really talk about it and she taught me all about the mechanics and electrical! Great!

Our grandson absolutely loved building his headphones. And it's been a year and he still uses them daily! So it lasts, is well designed, and provides hours of fun plus his feeling of accomplishment: he tells his friends he made them! So proud!


This is easily the favorite kit my 12 year old has done! (Close second is the kinetic speaker) The build was challenging and the quality of the headphones is great. He uses them daily for homeschool lessons and they've held up really well.

My daughter LOVES being able to bring these headphones to school and say she made them. She always surprises her teachers when they actually work!

My daughter followed all the instructions perfectly. She loved the snarked about sacrificing a headphone set for her to create her own!

I was thinking of ending my subscription when my son turned 18, but this kit changed both of our minds! Now I’m ordering another kit for myself! Standard headphones are usually too tight. This is very comfortable, it’s cool looking, and the sound is impressive! 
We may never end our subscription! 
Way to go Kiwi employees!!! ?????Keep it up!!!

My 8yo loved this project. She has used them every day since she made them. My husband helped with the instructions but I think she would have figured it out alone too.

My grandson, who's 10, loved the headphones!

Build the headphone headband, rig up the speaker drivers, and experiment with stereo sound. Explore how speakers and other electroacoustic transducers turn electricity into sound, then learn about the historical technologies that made modern headsets possible.

Stereo Headphones | KiwiCo

Explore the science of sound by building an amplification circuit to power your own personal speaker. With this kit, build and customize your speaker with a glowing LED, and learn about transistors and electromagnetism through the included instruction set. Recommended for ages 12+.

KiwiCo

Light-Up Speaker

My son did this one with his dad and it was an awesome project for them both, the sound was great and it lights up

My son and I really enjoyed this project. We had to go over some of it a few times to get it right but it was a success overall. I learned so much and he did too. Now we both feel like engineers! 

It's ok. Sound works, but can't get the light that goes inside it to light up much no matter what I do. It does work though.

Easy-to-follow instructions for my 11 year old. He was really happy with the finished product!

My 10 year old grandson loved this project

it was fun to make but the things i played on it was hard to hear

Really fun to build!very easy instructions too.

Great product, great for our teen ! She wanted a speaker for her phone,  now she knows the inner workings of it!

My son absolutely loves this speaker, he is very music oriented and usually isn't big on building things but he dove right in and had a blast learning about the way his speaker works! 

Explore the science of sound by building an amplification circuit to power your own personal light-up speaker.

Light-Up Speaker | KiwiCo

Use a laser pointer to create awesome geometric art! Use real electronic component to build your projector, including potentiometers, battery packs, resistors, and motors. Learn the science behind lasers and electrical circuits, wire up a working circuit of your own, and even project patterns using angles and mirrors.

Geometric Laser Projector

Quality parts. Biggest problem is changing batteries.  Need to partially disassemble t replace. 

This was the coolest crate we have received so far! It is solidly made out of plastic, it contains three motors! And it is not too complicated to build! My daughter played with it for hours making different shapes with the controls. Thank you for putting out such great products!

10yr old son loves KiWiCo. He did get through this one pretty quick so definitely looking forward to his next box to arrive! 

i love this product please do not run out!

the kids have loved every crate they have received. This one, in particular, was fantastic...

Fantastic 

Great quality. Keep your child's mind going and thinking. 

STEM . keeping his thinking going.

I gave my three grandkids (ages 5, 10, & 12) 6 month subscriptions to Kiwi for Christmas.  They absolutely love them and drop everything when they find out they have been delivered each month.  I have been so impressed with the quality & age appropriateness.  I also love that everything they need is included in the box.   

THREE GRANDKIDS LOVE KIWI 

My son loved making it and playing with it. I appreciated how you included extras of the easy-to-break-or-lose pieces.

Very satisfied

Good design and a fun experience both in building and using it.

Nice design

Construct a variable speed laser projector, capable of producing a variety of different geometric patterns.

Geometric Laser Projector | KiwiCo

Save 20% on this 3-pack bundle of STEM-sational projects and get hands-on with the science of energy and engineering design — all according to national science learning standards! 
All 3 projects delivered together. 

1. Headphones 
Tune in to technology with a pair of stereo headphones you build yourself, and discover how devices convert electricity into sound. See how this crate alignes to <a href="https://s3-us-west-1.amazonaws.com/images.kiwicrate.com/site/store/NGSS Standards/Academic Standards_LightUpSpeaker.pdf" class="font-bold" target="_blank">educational standards</a> for: Energy, Engineering Design, and Science & Technical Subjects. 
2. Light-Up Speaker 
Tinker with resistors and transistors to build a light-up speaker, and discover how sound waves work. See how this crate aligns to <a href="https://s3-us-west-1.amazonaws.com/images.kiwicrate.com/site/store/NGSS Standards/Academic Standards_Geometric Laser Projector.pdf" class="font-bold" target="_blank">educational standards</a> for: Energy, Engineering Design, and Science & Technical Subjects. 
3. Geometric Laser Projector 
Engineer a variable speed laser projector that can generate a variety of cool geometric patterns. See how this crate aligns to <a href="https://s3-us-west-1.amazonaws.com/images.kiwicrate.com/Winter+Enrichment+Academic+Standards/Bottle_Rocket.pdf" class="font-bold" target="_blank">educational standards</a> for: Waves and Electromagnetic Radiation, and Science & Technical Subjects.

Enrichment for Grades 9-12 (3-Pack)

My nephews loved them! , Fast delivery. Perfect for middle and high school kids

Great products and the grandkids loved them!!!  The different projects were perfect for the 9 and  6 1/2 year olds. KiwiCo delivered the gifts there right on time for the birthday party.  Thank you!!!

My son loves these he is 11. The only issue we had is the speaker was missing a piece so we can’t finish it. 