Does my radio need to match the receiver?

Yes: same protocol (ELRS) and compatible firmware versions. Bind with the same binding phrase.

Is ELRS range overkill for a whoop?

The range is more than you'll use, but the solid link and low latency help even indoors.

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Everything we stock for FPV in India, from whoop frames and motors to radios and goggles. Prices in INR. Stock shown honestly. Not sure what fits? Check Grind Lab, then come back and shop parts.

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Buying receivers for a whoop

ExpressLRS (ELRS) is the default radio link for new pilots: long range, fast and inexpensive. A nano receiver only matters if your flight controller doesn't already have one.

Check before you buy

ELRS 2.4 GHz to match most radios sold today.
Size and weight for your frame.
A board with a free UART to wire it to.

Does my radio need to match the receiver?: Yes: same protocol (ELRS) and compatible firmware versions. Bind with the same binding phrase.
Is ELRS range overkill for a whoop?: The range is more than you'll use, but the solid link and low latency help even indoors.

Go deeper

What is ExpressLRS
ELRS receivers for whoops in India: SPI vs UART, antennas, and what to buy
How to bind an ELRS radio