Dear Sir/Madam, I'm looking for products with the following specifications: AT9S- transmitter with R9DS receiver 2. Weight: 0.88kg 3. Frequency: 2.4GHz ISM band (2400MHz to 2483.5MHz) 4. Modulation mode: QPSK 5. Channel bandwidth: 5.0 MHz 6. Spread spectrum: DSSS and amp FHSS 7. Adjacent channel rejection: >38dbm 8. Transmitter power: Show More