four old multicolored button retro hipster vintage mobile phones with an antenna in a slider form factor, a clamshell

antenna background business button buttons call cell cellphone clamshell classic communication concept contact design device dirty equipment factor form four gadget graphic grunge hipster icon illustration isolated media message mobile modern multicolored nostalgia object office old phone phones pictogram retro service set sign slider smart smartphone sms support symbol technology telephone touch trend vintage web white wifi wireless