Hama Mini Speakers "PS127", 2.0 channels, 4 W, 200 - 20000 Hz, White, AAA x 4, Apple iPhone Hama Mini Speakers "PS127". Audio output channels: 2.0 channels, RMS rated power: 4 W, Frequency range: 200 - 20000 Hz. Product color: White. Battery type: AAA x 4. Compatible products: Apple iPhone, Dimensions (WxDxH): 4.92 x 3.15 x 0.984" (125 x 80 x 25 mm), I/O ports: 3.5mm