This rechargeable USB speaker is made of recycled pulp. It is ultra light despite its look and size. The sound is amplified by the vibration inside the hollow space of the speaker. After a series of trial and error processes, this speaker was born with unexpected potency of sound volume and quality.

Speaker system: Mono
Amplifier output: 5 watt R.M.S.
Input: 3.5mm earphone plug
Voltage input: USB 5V 0.5A
Rechargeable battery: 3.7V / 600MA

These are by far the coolest reusable drink container I’ve found. They’ve got the look and feel of a pop can, but they are made with PLA: a cornstarch-based plastic. That means they’re BPA-free and completely biodegradable. And with an insulating double wall, they’re basically a mini thermos:  great for keeping your coffee, tea or soup hot, or your cool drink cool. They’re leak-proof, dishwasher and microwave safe, and come in four great colours.

I knew they were green (completely recyclable, and made from 25% post-consumer material). I knew they looked awesome (tons of designs, including DIY versions you can draw on). But, as a bit of a “Costanza wallet” type guy, when I realized they also hold a ton of stuff, that put them over the top for me. Must have!

Dynomighty Tyvek wallets look great, they’re super-durable (water & tear resistant) and they weigh almost nothing. Doesn’t that beat a flap of dead cow?