The MX-RBT100 Retro Style Rechargeable Stereo Bluetooth Speaker combines vintage aesthetics with modern functionality. It features Bluetooth connectivity for wireless audio streaming and includes a USB charging function to power iPhones and other smartphones with 5V/1A output. The speaker is equipped with a blue LED indicator for Bluetooth pairing, a red LED for high/low voltage alerts, and a red LED for charging status. It delivers high-definition stereo sound through its 2x10W speakers, providing a total output of 20 watts. The speaker includes a variety of controls, such as a power ON/OFF button, rotary knobs for volume, bass, and treble adjustments, and source/pairing options. Additional features include a 3.5mm auxiliary input and a built-in rechargeable Li-ion battery that offers up to 5 hours of playtime. The package comes with an AC adapter and a user manual for easy setup and operation.