AvimaBasics Premium Quality Replacement Rechargeable Battery Compatible Plantronics CS70 CS70N Avaya AWH75N Headset Replaces Plantronics Battery 66278-01 (Blue 1 Pack) Benefits: Premium Long Lasting Lithium Polymer 110mAh 3.75v Rechargeable Battery, Highest Quality Available Perfect Fit for your Plantronics or Avaya Wireless Headset System Compatible with: Plantronics CS70 CS70N Avaya AWH75N Replaces Plantronics 66278-01 . Safe to use with your Plantronics devices. Brand: AvimaBasics develops high quality products. You can count on our GREAT Quality at an Excellent Price with a Brand you can Trust. Save on quantity! Buy multi-packs offered on this listing and SAVE! Warranty: 1 Year Unconditional Replacement Warranty