Azpen DockAll D100 is a stylish Qi wireless charging docking station with a Bluetooth 4.0 speaker system that provides premium sound through Dual Channel 5 watt tweeters with bass ports. The DockAll D100 also has two full size USB ports, a MicroSD slot, a built-in microphone, front panel controls, and it works with the toughest smartphone cases including OtterBox Defender. Specifications: Qi Wireless charging built-in Bluetooth 4.0 Dual Hi-Fi Speakers 4OHM 5W with dual reflex ports LED Light/Lamp USB1 1A USB2 2A for wired charging DC Charging Port MicroSD Card slot expanded to 64GB Docking Station Buttons: On/Off Button Answer and Mute Phone Controls Music and Volume Controls Play/Pause/Forward/Back/ Next Button Box Contents: Azpen D100 DockAll DC Charger User Guide