business man using mobile smart phone in the office

smart phone text messaging mobile phone formal businesswear businessman businesswear eyeglasses asian technology video colleague receiving corporate business well-dressed communication connection examining office dialing sending business working seniors suit 4k reading businesswoman answering correspondence men east asian ethnicity senior adult smiling people taiwan curiosity coworker color image white adult active seniors close-up women happiness senior men adults only ethnicity wireless multi-ethnic group indoors senior women indian caucasian calgary canada african american alberta