Audio and Connectivity
The M307 departs from today’s ubiquitous connectivity features. While it supports some basic multimedia functions like MP3 playback, it lacks a 3.5mm headphone jack and does not include Bluetooth, WiFi, or radio functions. This limits its use as a standalone media player or a tethering device. Instead, the phone relies on downloadable polyphonic and MP3 ringtones for customized alerts and utilizes a proprietary USB port for services.