Gazelle provides an easy, fast, and safe way for you to sell electronics and recycle electronics. When you sell cell phones, mp3 players, laptops, or other gadgets to Gazelle, you'll earn cash and help save the environment by keeping old, used gadgets out of landfills. You get green while being green! The bottom line is you want to sell electronics and Gazelle wants to buy electronics. A perfect match!. The 28 most popular Gazelle coupons & Gazelle promo codes for December 2017. Make use of Gazelle coupon codes & sales to get extra savings when shop at gazelle.com.