Sub Zero 3 inch Single Big size - ZR-4000

ZR-4000 Type: Speaker Interface 1.0 Channel: Wired / Wireless Compatibility: Multi-device Support (USB SD/MMC - Bluetooth) Remote Control: Yes Power Output: 3W Speaker Unit: 4 . Built to prevailing industry standards, it scores high on the utility side. The quality materials used in its construction make it durable.