Question about Futaba T10j-R3008sb

Can someone please explain to me why I can find 3 "variants" (in the Google search even 4 "variants") of the Futaba T10j via the Digitec search window? 1st Futaba T10J-R3008SB Art. no. 5335153 Manufact. no. 05003093-3 Price: Fr. 329.- Mode ? Only labelled "T-FHSS" at the bottom left of the product image 2. Futaba T10J-R3008SB Art. no. 12874557 Manufacture no. 01000111 Price: Fr. 330.25 Mode 2 Labelled "T-FHSS AIR" in the lower left product image 3. Futaba T10J-R3008SB Art. no. 12874557 Manufacture no. 01000111 Price: Fr. 339.- Mode ? Labelled "T-FHSS AIR" in the bottom left of the product image (Google only) 4. Futaba T10J-R3008SB Item no. 5335152 Manufacturer no. 05003092-3 Price: Fr. 407.- Mode ? Only labelled "T-FHSS" in the bottom left of the product image also different delivery dates: 1: 30 Nov - 4 Dec 2024 2: 27 Jan - 10 Feb 2025 3: 6 Jan - 31 Jan 2025 4: 30 Nov - 4 Dec 2024 respectively: are there any differences? (I can only find one variant on the Futaba HP)... Many thanks for your feedback.