“Voice-Over Services” is a catchall phrase which encompasses everything many voice-overs might offer. So not just the actual “voice-over”. Most voice-overs offer the basics of recording and delivery of audio. Some may also supply, if requested, any processing and/or sound-sweetening (compression, echo, reverb etc.) of recorded audio, in a format chosen by the client/studio, along with assistance regarding the ‘tweaking’ of a script to make it read/flow better, proofing, more than one take…it’s all down to the individual voice-over artist…