It’s great to have some tunes when you’re outside – whether you’re backpacking (car camping counts), messing around at the beach, or hanging in the backyard with your pals – because when the urge to boogie strikes, you should by all means honor that urge. (Just don’t disturb any wildlife unless you’re under immediate threat…)

Here are 7 of coolest, eco-friendly portable speakers to check out in 2016, all of which are powered by the sun:

1. Solar Powered Bluetooth Speaker by Nunet™

Great things come in small packages.  The Nunet portable, wireless speaker is a music player with a built-in microphone and a microSD card slot to use as an MP3 player.

  • Clear audio quality, including a rich bass sound
  • Easy to change songs with a quick press; change volume with a longer press
  • Hangs from a small carabiner, making it great for sports and outdoor use
  • Water-resistant
  • Solar-chargeable with a built-in rechargable lithium-ion battery,  up to 4 hours playback time; comes with a USB cord
  • Dimensions: 4″x3″x2″
  • $45.99

2. Bamboo Solar Powered, Portable, Wireless Bluetooth Speaker by Reveal

How cool is this company? Reveal also makes sustainable wood, bamboo, and cork cell phone cases, which have been featured on UniGuide. In addition to designing sustainable, Earth-friendly products, Reveal takes it a step further and plants a tree with the non-profit American Forests for every item it sells. To date, they’ve planted over 40 million trees worldwide.

Reveal’s Bamboo Solar Bluetooth Speaker

  • Internal lithium-ion battery has an 8-hour battery life, without sun available to recharge its solar panels
  • Made with sustainable bamboo
  • USB port recharges smart phones and other devices – while playing music
  • Beautiful sound clarity
  • 100% satisfaction guarantee
  • Dimensions: 6.5″ x 3″ x 2″; weight: 13.4 oz.
  • $99.95

Of course, I have to throw this item in:

Reveal DJ Deep Bass Bamboo Headphones

These headphones have a genuine bamboo housing helps to deliver a warm, well-balanced and powerful sound, with a deep bass and crisp high response.

  • Passive noise isolation with TPE cables and gold tip plug
  • No PVC or toxic chemicals!
  • Compatible with: iPhone 3, iPhone 3G, iPhone 4, iPad, iPod, MP3 players, CD players, DVD players, PSP, computers, and other music gadgets
  • $119

Eton Rukus is a notable brand that produces a variety of popular solar powered speakers.

3. Eton Rukus Rugged Xtreme All-Terrain Portable Solar Wireless Sound System with Free External Battery Bundle

  • Speaker can be solar or AC powered
  • High quality sound
  • Charges cell phone while music is playing
  • 8 hours of playing time without sun-charged power
  • Rugged and water resistant
  • Bundle includes an Eton BoostX Rugged 5600 mAh IP65-rated backup battery with dual USB output and integrated flashlight
  • Bundle is $243.53. (Items can be purchased separately.)

4. Eton Soulra XL Solar Powered Sound System for iPod or iPhone

Get high-quality audio from a completely portable dock!

  • Comes with 8 speaker drivers (2x tweeter, 2x woofer, 4x passive) and a 22-watt output with bass boost
  • Solid sun indicator light as it’s being solar charged
  • 5 hours of playing time
  • 3 hours to fully charge an iPhone
  • Comes with a gel-padded shoulder strap, remote control, and AC adapter
  • Dimensions: 15.1″ x 5.2″ x 8.1″; weight: 7 lbs.
  • $189.00 – $250.00

5. Eton Portable Bluetooth Solar Powered Wireless Speaker System

This portable sound system takes it to a whole new level! The Rukus Solar wirelessly streams your music from any source; Bluetooth connectivity includes one-touch pairing and control and high quality streaming stereo – so you get a really big sound!

  • Play your music from any Bluetooth-enabled phone, tablet, or computer
  • Built-in high efficiency monocrystal solar panel and rechargeable Li-ion battery
  • USB port for mobile device charging, AC adapter, and aux-in jack
  • Integrated carrying handle
  • Dimensions: 12″ x 8.4″ x 3.5″; lightweight at 3.5 lbs.
  • $499.99

6. Ivation Water-Resistant Solar AM/FM/NOAA Radio, Bluetooth Stereo Speaker & Phone Charger

This is a great little rugged stereo sound system from Ivation. Bring it hiking, camping, for fun or work outdoors, and more.

  • Flexible power: built-in solar panel and integrated hand-crank dynamo
  • Charges your cell phone or tablet
  • Stereo speakers: AM/FM/NOAA Radio, Bluetooth, SOS alerts & alarm clock
  • LED display shows time, date, day of the week, and temperature in celsius or fahrenheit
  • Telescoping antenna for optimal reception
  • Comes with USB port, headphone jack
  • Dimensions: 8″ x 3″ x 7″; weight: 3.5 lbs.
  • Comes in bright yellow or orange
  • $89.99

7. MicroSolar Portable Solar Powered Bluetooth Speaker

The most R2-D2-lookin’ one of the bunch! MicroSolar’s portable, solar powered speaker isn’t just cute, it’s eco-friendly and waterproof. It’s begging to be taken to the beach, the river, or outer space.

  • Charge it with the sun or USB charger; rechargable lithium-ion battery
  • 8-10 hours of playing time fully charged
  • Waterproof
  • $116.99