Ryght Y-Storm. System type: 1.0 system, Recommended usage: universal, Speaker placement: Portable. Frequency range: 60 - 18000 Hz, Signal-to-Noise Ratio (SNR): 95 dB, Total Harmonic Distortion (THD): 0.5 %. Connectivity technology: Wired, Speaker interface type: 3.5 mm. Width: 60 mm, Depth: 60 mm, Height: 50 mm. Battery technology: Lithium, Battery voltage: 3.7 V, Battery life (max): 8 h