48 channels: Covers A, B, E, and F bands, 4 bands with all frequencies compatible Two switching buttons: CH button for channel switching, FR button for band switching Two-digit display: One for CH and one for FR, enabling real-time identification of the received frequency band and channel Power-off memory: Remembers the last used frequency band and channel for video and audio signal output This is the 48-channel edition of the 5.8G 600mW A/V wireless system TX TS832 specifications: Power input: 7.4-16V (3S LiPo recommended) Transmitting power: 600mW Antenna gain: 2dB Working current: 220mA at 12V Video bandwidth: 8MHz Audio bandwidth: 6.5MHz Weight: 22g Dimensions: 54 x 32 x 10mm (excluding antenna) Note: The TX antenna must be properly installed before powering on. Operating without an antenna or using an improper antenna may damage the transmitter. Due to different production batches, printed markings on the product and accessory details may vary slightly but do not affect functionality. Color: As shown Material: Plastic + PCB Package contents: 1 x TS832 48CH 5.8G Transmitter (transmitter only; other items not included) Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed: +/- 1-3cm.