Product details of Orignal Mini Rechargeable 3+ Bluetooth Speaker Waterproof Portable Bluetooth Speaker Specifications: • Wireless Connection: Bluetooth • Maximum Power: 6W (2 * 3W) • The Range Of Reproduced Frequencies: 100Hz-18kHz • SNR:> 80dB • Power-Charge: USB DC 5V • Battery: Li-Ion Polymer (3.7V, 1500mAh) • Charging Time: 4 Hours (1.8A) • Working Time: Up To 5 Hours • Dimensions, Mm: 165 X 70 • Weight: 350gr • Colors: Black/Blue/Red Sync With Devices Via Bluetooth. Two Loud And High-Quality Speakers With Two Subwoofers. Hands-Free Function. Built-In FM Radio (USB Cord Is Antenna). Compact Size. FM Radio (Auto Search, Station Memory). MicroSD TF Card Playback. Playback From USB Flash Drive. Bluetooth Playback Specifications of Orignal Mini Rechargeable 3+ Bluetooth Speaker Waterproof Portable Bluetooth Speaker