BluePad-55 

Payment types:
Magnetic cards,
Chip cards
Contactless cards

Size (W x H x D):
71 mm x 133 mm x 19 mm

Weight: 180 grams

Display: TFT 320 x 240 pixel touch screen

Buttons:
Power on / off button
10 digital buttons
5 function buttons

Wired Communication:
USB (device) 

OS Compatibility:
iOS
Android
Windows

Bluetooth (optional):
BT version 4.2 Low Energy 

Wireless (optional):
Wi-Fi IEEE 802.11 b/g/n
 
Cellular Module (optional):
2G/3G/4G communication 

Security:
PCI PTS 4.x certified

Printer: No

Connectors:
RS-232 contact pins
USB Type-C port 

Battery: Rechargeable 3 V, 1180 mAh lithium-ion battery.