| Manufacturer | Shenzhen City Speed Technology Ltd. |
| Category | Sound system |
| Price | ￥810.0 |
| Goods | SU-669S (X) |
| Brand | Speed |
| Specifications | 1 to 10 standard, 1 to 10 standard, 1 to 10 standard, 1 to 20 standard, 1 to 20 standard, 1 to 20 standard, 1 to 20 standard, 1 to 30 standard, 1 to 30 standard, 1 to 30 standard, 1 to 30 standard, 1 to 30 standard, 1 to 30 standard, 1 to 30 standard, 1 to 30 standard, single keyboard, single keyboard |
