Cheap a99, Buy Quality trigger ball directly from China trigger switch Suppliers: Godox X1T-S 2.4G Wireless Flash TTL Trigger for Sony DSLR Camera (MI Shoe) A77II A7RII A7R A58 A99 Godox TT685S V860S TT600S
Godox X1T-S TTL 1/8000s HSS 2.4G Flash Trigger Transmitter for S0ny CamerasMain features: Godox TTL wireless flash trigger X1T-S applies to S0NY DSLR cameras with MI Shoe. Featuring multi-channel triggering With built-in 2.4G wireless transmission Fully support s0ny TTL functions, 1/8000s high-speed sync, second curtain sync,flash exposure compensation, flash exposure lock, modeling flash control etc. With GR group flash and wireless grouping system (max 5 groups&32 channels) and triggering the flash.Package Including: 1 x X1T-S 1 x Pergear 3 in 1 Cleaning Kit - Gif