Edifier Prisma BT. Audio output channels: 2.1, RMS rated power: 48 W, Recommended usage: PC. Total Harmonic Distortion (THD): 10 %, Signal-to-Noise Ratio (SNR): 85 dB. Satellite speaker type: 2-way, Satellite speakers RMS power: 18 W, Satellite speaker impedance: 5 Ом. Subwoofer type: passive, Subwoofer RMS power: 32 W, Subwoofer impedance: 5 Ом. Satellite speaker dimensions (WxDxH): 96 x 118 x 234 mm, Subwoofer dimensions (WxDxH): 248 x 294 x 199 mm, Set weight: 4.1 kg