Fangrui Product Details 1. Eight-channel Multi-frequency Remote Control, Compatible With Frequency Points In The Range Of 300-915mhz 2. The Red Light Light Up When Charging And Go Out When Fully . 3. One Channel Copies One Door And Can Be Controlled Individually Without Interfering With Each Other. 4. With Channel Lock Function. And Hold The Two Buttons On The Remote Control. After About 3 Seconds, The Led Light Flash Quickly, Indicating That The Channel Is Locked Successfully. 5. Subsequent Channel Switching Not Be Possible. If You Need To Switch, The Operation Above And Perform The Operation Again. Receiving Frequency: 300-915mhz Mit 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 Not Affect The Use. Colour:blue Material:abs Size:about 73x37.6x13mm Package Contents: 1 * Wireless Remote Only The Above Package Content, Other Products Are Not Included. N