Logitech X50 Mobile Wireless Speaker

Connection Type: Bluetooth-wireless, 3.5mm
Indicator Lights (LED): Blue, Red and Purple
Battery Details: 750mAh; 3.7V
Battery Life (rechargeable): 5hrs
Power Rating (RMS): 3W
Driver Size: 1.5 in (38.1 mm)
Sound Pressure Level (SPL Max): >78dBC
Signal-to-Noise Ratio (SNR): <-85dBr
Frequency Response: 132Hz - 20kHz
Input Impedance: 4ohms
Audio Controls: Volume +, Volume -, On/OFF/BT Pairing
Charge Rating: 5V, 500mA (USB Charge)
4 hours Backup