Experience wireless audio freedom with the Sennheiser Flex 5000 Wireless Audio Transmitter. This device allows you to enjoy high-quality sound without being tied down by cables. The transmitter is compatible with universal brands, has a 40mm driver size, and double earpieces. The VHF band provides live monitoring, while the ear-hook form factor ensures a secure fit. The Flex 5000 features Bluetooth and RF wireless technology, and comes with a detachable cable that is 1.2 meters long. It also has foam tips, playback controls, volume control, a built-in on/off switch, and wireless charging. The device has a 2-year manufacturer warranty and was manufactured in the 2010s. The item is sold as pictured and does not come with batteries.