Artsound AS350 HGS. Tweeter size: 12.7 mm, Woofer size: 88.9 mm. Peak Music Power Output (PMPO): 110 W, Frequency range: 85 - 20000 Hz, Sensitivity: 80 dB. Weight: 1.4 kg. Type: In-wall/On-wall/In-ceiling speakers, Dimensions (WxDxH): 115 x 166 x 168 mm, Audio output channels: 2.0