The SLDA72-2R470G-S1TF is an SMD (surface-mount device) Antenna manufactured by Sunlord. It is a 7.0x2.0mm rectangular antenna with an internal resistor of 470 ohms (2R470G) and is compliant to RoHS (Restriction of Hazardous Substances) directive. This antenna is mainly used in wireless communication devices such as Wi-Fi, Bluetooth, Zigbee, etc. It is also used in satellite applications, navigation, and positioning systems.