Top features: - Enrich audio quality and add cordless power to your Amazon Echo Dot speaker - Stylish addition that compliments any room in your home or office Enrich audio qualityBoost the performance of your Amazon Echo Dot speaker with the Ninety7 Vaux Speaker for Amazon Echo Dot. It also has a 3.5 mm jack input so you can plug in a smartphone or tablet and use as a portable speaker.Take your Echo Dot smart home speaker with you around the house, as the Vaux provides up to six-hours of battery life for cordless control of your home.Stylish additionThe Vaux speaker doesn't just compliment your Echo Dot with its performance - it also looks the part with a stylish design that fits any environment, whether it's your home or office.