With MP3 Bitrate Changer you can change MP3 bitrate, so you can easily send MP3 audio to your mobile device, cell phone, or as an E-mail attachment. MP3 Bitrate Changer creates audio preview and file size estimation of future result before actual conversion-bitrate change, so you can listen and determine which combination of sound quality and file size fit your needs. MP3 Bitrate Changer has simple UI, you can change MP3 bitrate in few clicks.