27mhz AM 27.145 Crystal Tx & Rx (1 pair) Yellow. Suitable to fit 27mhz AM frequency radios. Not suitable for 27mhz FM radios / receivers or any other frequency band. Suitable for 27mhz AM only.
eBay
4ch 27MHZ Transmitter Receiver Set Remote Controller Main Board Kit for DIY RC Stunt Car Vehicle Dump Truck
Aliexpress UK
This is for children's electric cars, the kind that children can ride. (The prerequisite is: 1, is a child electric car. 2, the frequency is 27MHZ). Compatible with 4 channel RC cars. Also available for dump trucks with four buttons on the remote.
eBay
Hot 4CH RC Remote Control 27MHz Circuit Transmitter And Receiver Board 4-channel Launch Board Receiver Board RC Car Accessories
Aliexpress UK
Unused in box.
eBay
1pcs Remote Control 27MHz RC Transmitter For Children's Electric Cars Electric Toys Remote Control
Aliexpress UK
This is for children's electric cars, the kind that children can ride. (The prerequisite is: 1, is a child electric car. 2, the frequency is 27MHZ). Compatible with 4 channel RC cars. Also available for dump trucks with four buttons on the remote.
eBay
27Mhz Universal RC Transmitter Remote Controller Children's Electric Ride on Car
Aliexpress UK
The Futaba Attack Sport FP-T 2NCR 2ch 27MHz Transmitter is a high-quality remote control transmitter designed specifically for RC model cars and boats. With a frequency band of 27MHz, this transmitter allows users to control their vehicles with precision and accuracy. As part of the renowned Futaba brand, users can trust in the reliability and performance of this transmitter for their RC model vehicles. Ideal for hobbyists and enthusiasts, the Futaba Attack Sport FP-T 2NCR transmitter is a must-have accessory for a fun and exciting remote-controlled experience. This item is in mint condition and looks like it has had a no use 
eBay
2pcs 5CH RC Remote Control 27MHz Circuit PCB Transmitter And Receiver Board Radio System For Toy Car
Aliexpress UK
MacGregor Digimac IV Transmitter (Type MR1640): The next generation in the Digimac series. The casing is in good condition for its age. MacGregor Digimac III Transmitter (Type MR1500A): A classic piece of British-made RC history.
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6CH 2.4G Remote Control High Quality 27MHz Circuit PCB Transmitter Receiver Board For RC Car Toys Parts
Aliexpress UK
Fully working and overall in good condition. Transmitter only, no receiver Sadly missing the little nib on the top of the aerial but you could replace the aerial or just use as is because it still extends and works as it should.
eBay
5CH Circuit Board With Remote Control DIY Toys 27MHZ Circuit Board PCB Transmitter Receives Antenna Toys-RC Replacement Parts
Aliexpress UK
This is for children's electric cars, the kind that children can ride. (The prerequisite is: 1, is a child electric car. 2, the frequency is 27MHZ). Compatible with 4 channel RC cars. Also available for dump trucks with four buttons on the remote.
eBay
new LN-R1 lnr1 6V 12V Children electric car 27mhz 12V remote universal remote control or receiver,toy car remote transmitter
Aliexpress UK