Samsung EO-SG710, Wireless, Micro-USB, Mono portable speaker, Gray, White, Digital, Universal Samsung EO-SG710. Connectivity technology: Wireless, USB connector type: Micro-USB. Product type: Mono portable speaker, Product color: Gray, White, Volume control: Digital. Recommended usage: Universal. Power source type: Battery, USB, Battery life (max): 8 h. Weight: 14 oz (396 g), Width: 3.06" (77.7 mm), Depth: 3.06" (77.7 mm)