The Perfect Companion for Your Lav or Headworn Mic The perfect companion for your Anchor Audio lavalier or headworn mic, the WB-Link is a wireless bodypack transmitter with a 150-foot operating range and 16 user-selectable channels. At GearNuts, we were impressed by the 6–8 hours of use from two AA batteries that power this portable, easy-to-use unit. This bodypack requires a microphone with a 3.5mm connector.Anchor Audio WB-Link Features: Bodypack transmitter with 300' operating range and 16 user-selectable channels Achieve 6–8 hours of use from 2 AA batteries Requires a microphone with a 3.5mm connector