| Manufacturer | Shenzhen City Speed Technology Ltd. |
| Category | Sound system |
| Price | ￥820.0 |
| Goods | 680S |
| Brand | Speed |
| Specifications | 1 to 10, 1 to 10, 1 to 10, 1 to 10, 1 to 20, 1 to 20, 1 to 20, 1 to 20, 1 to 20, 1 to 20, 1 to 20, 1 to 30, 1 to 30, 1 to 30, 1 to 30, 1 to 30, 1 to 30, 10 to disk receivers, individual keyboards (e.g., note) |
| Model | SU-680S |
| Place of use | Dining room, hospital, cafe. |
| Work voltage | 110-250 V |
