1. retro handset for branded mobiles 2. with ADAPT SWITCH , on/off key, Vol ROLLER 3. plug and play 4. Colors optional Plug & Play Radiation protect retro handset for BRANDED MOBILES (directly use, needn't adaptor)with 3.5mm DC jeckNew Switcher design help you plug and play on any branded mobile. Easy life, health life.1. Radiation protect, protect user's health2. Retro style, popular fashion3. ...