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4CH Wireless Remote Control System RF Transmitter Receiver – 12V. This 4 channel dc wireless remote control system operates in toggle, momentary, latched,. AK-RK04S-12多功能学习型四路遥控开关. Model: AK-RK04S-12. Name: multifunction, learning and 4-channel remote switch. Retail price: USD11. Buy the best and latest remote control switch gv rk04s 12 on banggood.com offer the quality remote control switch gv rk04s 12 on sale with worldwide freeLearning type 12 V 4CH remote control switch TY-RK04S-12 Views：546; Frequency:433.92Mhz/315Mhz; Working voltage:12V; Product Manual：. Inquiry. Title: 12V four channels RF control with leaning code. Model: AK-RK04S-12A. General Introduction:Our four channels RF controller send open signal and close