Hit up Amazon with code MAYDAY30 to take $30 off your new Kindle Fire. Don't miss out on great deals on textbooks, external batteries, Eneloops, at lots more throughout the rest of today's deal roundup. [Amazon]

If you missed yesterday's battery deals, fear not; RAVPower will sell you a huge pack for just $35 from Amazon.

RAVPower 14,000mAh External Battery | $35 with Promo Code HEV6B52F

Sitting is killing you, but you can turn work into a workout with great deals on office fitness gear from Amazon. Today only, you can pick up the renowned LifeSpan Treadmill Desk for $1,150 (normally $1,500), the FitDesk Exercise Bike for $209 (normally $300), and a Gaiam Balance Ball Chair for $53 (normally $80). If you opt for the ball chair, you can also pick up a soft ball cover in the color of your choosing for just $24.

If you're ready to kick cable to the curb, you can pick up a powerful outdoor HDTV antenna from eBay today for just $29. If you live in an urban area, something like a Mohu Leaf will get the job done with less installation hassle, but the 100+ mile range and rotating motor on this outdoor model should allow just about anybody to pull in crystal clear HD.

HDTV Amplified Antenna | ($29)

Best Buy is offering the Pioneer A3 Wi-Fi speaker today for just $70, matching the lowest price we've ever seen. It's compatible with AirPlay, DLNA, and HTC Connect, all of which should offer better range and sound quality than Bluetooth.

Pioneer A3 Wi-Fi Speaker | $70

pre-order Game of Thrones Season 3 [Blu-ray/DVD/Digital] | $50



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