This Bluetooth speaker has built-in solar panels for never-ending fun: $28 (Reg. $40)

$28

ZeroLemon’s official Amazon storefront offers its Solar Bluetooth Speaker and Power Bank for $27.99 shipped when code QZYC37WI is used at checkout. Normally $40, this is the first major drop we’ve tracked and the best available. Through reviews are slim here, over 20 customers gave it a 4.9/5 star rating and ZeroLemon is normally well-reviewed on Amazon.

ZeroLemon Solar Bluetooth Speaker features:

• Longest Playtime in the Market with Solar Technology: Incredible 72-hour/1500-song playtime powered by a built-in 10000mAh Li-polymer battery. With built-in solar technology, the SolarSound converts and stores solar energy from sunlight for emergencies and outdoor.
• Crystal Clear & Superior Bass Sound: Enjoy your music in 10W stereo sound through dual high-performance drivers and superior enhanced bass performance.
• Charges your Smartphone on the go: The SolarSound can also be used as a 10000mAh power bank. Simply plug your phone or tablet into the SolarBass Bluetooth 4.0 Speaker and it will charge your device while playing music.
• Bluetooth 4.0 technology: Compatible with all Bluetooth-enabled devices. Instantly connect to your smartphone or tablet from up to 32 foot away. SolarSound reconnects automatically to the last device used.