1. Eight-Channel Multi-Frequency Remote Control, Compatible With Frequency Points In The Range Of 300-915MHZ 2. The Red Light Will Light Up When Charging And Will Go Out When Fully Charged. 3. One Channel Copies One Door And Can Be Controlled Individually Without Interfering With Each Other. 4. With Channel Lock Function. Press And Hold The Two Buttons On The Remote Control. After About 3 Seconds, The Led Light Will Flash Quickly, Indicating That The Channel Is Locked Successfully. 5. Subsequent Channel Switching Will Not Be Possible. If You Need To Switch, Press The Operation Above And Perform The Operation Again. Receiving Frequency: 300-915MHZ Transmit Power: 13dBm Working Voltage: 3.7V Working Current: 30mA Remote Control Distance: 30-50m Charging Interface: 5V Tpc-C Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use. Colour:Yellow Material:ABS Size:About 73x37.6x13mm Package Contents: 4 x Wireless Remote Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.