Sound and Communication
The Bird D515 is equipped with a loudspeaker and supports vibration and downloadable polyphonic and MP3 ringtones, though it lacks a 3.5mm audio jack, which limits direct audio output through standard headphones. Bluetooth connectivity is optional, adding some level of wireless capability for file transfers. However, it does not support WLAN or GPS, reinforcing its position as a basic communication device. An FM radio is optional, catering to users who enjoy classic radio entertainment.