Native Union Moshi Moshi Red Retro Handset w/Base Reduces up to 99% of the radiation absorbed by the human body 3.5mm jack to plug directly in your iPhone, Blackberry and latest Macbooks (some mobile phones may need an adaptor to connect the Retro to the mobile phone) One touch button for pick-up directly from the handset Noise reduction system 31.5 wire from the base for convenient use of phone functions while talking on the Retro