what ever you decide on for an anr headset consider coughing up the few extra bucks for the panel power supply and skip the batteries . i converted one of my david clarks to anr and used the battery pack for a while , what a pia . i flew for a while that way and finally installed the panel mounted power supply wired to the radio master and never looked back . granted the lightspeed are light comfortable and work good but i just have a problem shelling out $900 and them being made in china . for that kind of money they could surely be made in the usa .