Specifications:
MCU:ESP8285
VCC input: 5v
Operation current: ~100Ma
Rx To FC protocol: CRSF
RF Frequency optional: 915mhz or 868mhz(EU)
Dimension: 12mm*12mm*3mm
Weight: 0.60 gram (exclude antenna)
Antenna connector:  IPEX1
Telemetry output Power: <17dBm
RC7 Firmware for ES900RX download:

Package Includes:
1 x Receiver
1 x Micro T Antenna
1 x T Antenna