Nokia 130 ($ 28)

Features:
Audio3.5mm audio jack Speakerphone  

Specifications:

BuildDimensions106 x 45.5 x 13.9 mm  
Weight68.6 g  
ColorsMulti colours  
Frequency2G BandGSM: 900 / 1800  
DisplayTechnologyTFT 56K colors  
Size1.8 inches  
MemoryBuilt-in
CardmicroSD Card (supports up to 32GB)  
CameraMainNo  
FeaturesNo  
FrontNo  
ConnectivityWLANNo  
BluetoothYes  
GPSNo  
RadioNo  
USBYes  
NFCNo  
FeaturesAudio3.5mm audio jack Speakerphone  
BrowserWAP  
MessagingSMS MMS  
Gamesbuilt-in  
TorchNo  
ExtraOrganizer Voice memo Torch speakerphone  
BatteryStandbyUp to 36 days  
TalktimeUp to 13 h  
MusicplayUp to 46 h