NGS ROLLERRIDEBLUE, 2.0 channels, 5 W, 10 W, Wired & Wireless, 393.7" (10 m), Stereo portable speaker NGS ROLLERRIDEBLUE. Audio output channels: 2.0 channels. RMS rated power: 5 W, Peak Music Power Output (PMPO): 10 W. Connectivity technology: Wired & Wireless, Bluetooth range: 393.7" (10 m). Product type: Stereo portable speaker, Product color: Blue, Product design: Other. Recommended usage: Universal, Compatible memory cards: MicroSD (TransFlash)