1.Small in Size But Powerful Sound: With its palm size and minimalist design, this wireless speaker (wired Aux input option available), delivers a well-defined high & low frequency response, for great audio clarity which is in stereo, rich with details, and smoothly well-balanced. Powerfully loud with a 40mm 3W tweeter to provide a clean & precise sound despite a small resonance cavity. In addition, the retro turn knob allows you to adjust the volume levels to match your preference. 2.Latest Bluetooth Technology & Aux Input/TF Card Option: This cute vintage speaker has built-in wireless capabilities to stream from all devices, such as smartphones, laptop, tablets, etc. Advanced Bluetooth V4.2 technology provides a powerful and reliable 33ft transmission-distance connection without delays, dropouts or interference, giving you dom to stream music cordlessly. Also, it support 3.5mm Aux input option for desktop PC or devices without Bluetooth function. 3.Hands-Free Calls & Rechargeable Battery & Universal Compatibility: Easy button control, built in mic, answer/end calls, it's a breeze. Its built-in 400mAh rechargeable battery 2-3 hours of non-stop wireless audio playback on a single charge. Micro-USB charging cable included. This retro gadget is compatible with iPhone, iPad, samsung galaxy, android smartphones, tablets & other Bluetooth devices as well as all devices as long as they come with Bluetooth function. 4.Super Compact: This retro speaker is an exquisitely designed and beautifully crafted gadget that measures 2.2×3.9×2.7 Inches. The Ultra compact design allows it to fit in your pocket for easy carrying and the handy strap makes it easier to attach to your shower room, bag or backpack. The size is phenomenal for portability, and this makes it ideal both for indoor and outdoor use. Place it in a bookshelf or on a table if you are operating with limited space while streaming your favorite music.