Key features

• •This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
• •EXTRAORDINARY 360° HD SOUND + OPTION TO CONNECT TWO SPEAKERS - Each of our TWS cordless speakers comes with 25W of crisp 360° HD Sound and DualBass double subwoofers, for an unmatched listening experience. If that's not enough, you can CONNECT TWO speakers together for true high-definition surround sound that will blow you away.
• •MADE FOR OUTDOOR SPORTS AND ADVENTURES - Don't be fooled by the gorgeous looks and cool ambient LED's of this water-resistant speaker. It was made super rugged for all your outdoor sports, hiking, camping, and getting active. Now grab your HD77, put on your favorite tunes, and have fun outdoors with your family and friends!
• •RAIN OR SNOW, IT'S A GO - HD77 is a brave loud wireless speaker that's up for anything. It's not afraid of moisture or tough love. It's shockproof and waterproof IPX6 rated so it loves singing in the rain and doesn't mind being dropped, kicked or bounced. ALL DAY POWER ON A SINGLE CHARGE - - Feel free! Leave the charger at home and go play! As HD77 doesn't play games with PlayXTend energy-saving tech and high-capacity 5200mAh battery for you up to 20 HOURS of medium volume play per charge.
• •FUTURISTIC FEATURES - 1. Built-in Microphone for calls. 2. Deep cool ambient LED's set the mood. 3. Easy setup in seconds via Bluetooth with your iOS, Android or Windows device. 4. Intuitive indicator lights help you connect easily. 5. 33-feet signal range so you're free to roam with your phone still in your pocket. 6. Hand strap and carabiner to hang on your backpack.