Monoprice via eBay has Monoprice SonicSolace Active Noise Cancelling Bluetooth Wireless Over Ear Headphones (Black or Tan) for $22.99. Shipping is free.
Features:
- Up to 16 hours audio playback without active noise cancelling enabled
- Up to 8 hours of audio playback with active noise cancelling enabled
- Built-in 320mAh Lithium-ion battery
- 20Hz – 20kHz frequency response
- Bluetooth version 4.0 with A2DP, AVRCP, HFP, and HSP profiles
- 40mm drivers with neodymium magnets
- 105dB sensitivity
- Audible indication of low battery status