| Brand | Yongnuo |
| Model | RF603/C1 for Canon / Pentax / Samsung |
| Type | Wireless Flash Trigger / Synchronized Shutter Release Remote Control Transceiver |
| Shutter Release | Half-press: Focus Full-press: Shutter, B mode |
| Compatible List | - Canon: G10, G11, G12, 1000D, 450D, 500D, 550D, 600D, 60D - Pentax: K100D K110D K10D K200 K20D - Samsung: GX-10, GX-20 |
| Shutter Interface | 2.5mm socket |
| Studio Light Interface | Standard PC Socket |
| Sync. Speed | Up to 1/320s (depends on camera model and flash model) |
| Frequency | 2.4GHz band/16 selectable operating frequencies for eliminating interference |
| Power Source | 2 x AAA battery for each transceiver (buy Sanyo eneloop low self discharge rechargeable AAA batteries here) |
| Stand-by Time | Up to 45 hours (AAA battery) |
| Size (per transceiver) | 37mm x 30mm x 81.5mm |
| Package | 2 x transceiver, 1 x compatible cable (transceiver to camera), instruction manual |
