Audio and Battery Life
The device supported loudspeaker functionality and provided diverse alert types, including vibration and downloadable polyphonic and MP3 ringtones, which could even be assigned to contacts—a personalized touch in the user experience. However, the absence of a 3.5mm headphone jack was a downside, restricting audio output to its built-in speaker or necessitating proprietary accessories.
Powering the Treo 650 was a removable Li-Ion battery, offering up to 300 hours of standby and up to 6 hours of talk time. This made it a reliable companion for professionals requiring a device that could sustain long periods of activity without frequent charging, reinforcing its role as more of a productivity tool than a mere communication device.