Built-in battery for worry-free travel Revolutionary! The world's first wireless image transmitter with a built-in battery. and long-lasting, anywhere, connect anywhere. Transmission distance 150 meters and delay as low as 0.06 seconds 150 meters stable transmission, 0.06 seconds ultra-low latency. 88.26g magnetic black technology One-touch connection, easy to take and upload the constraints of wires, compatible with mainstream devices, magnetic interconnection, one-click switching of scenes. Intelligent frequency hopping, non-inductive anti-interference, stable transmission like a straight line in complex environments Automatic frequency hopping, intelligent matching of optimal frequency band, and instant transmission of images in extreme scenes without delay. Transmit power:17dBm Photography Accessories Type (The product printed words depending on the batch, but this does not affect use) Color: Black Material: ABS Package Contents: 1 x Transmitter 1 x Receiver 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.