| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| fiio k9 | 0.64 | 0.1 | 8593 | 2 |
| fiio k9 pro | 0.28 | 0.7 | 3954 | 62 |
| fiio k9 pro ess | 1.21 | 0.9 | 5923 | 23 |
| fiio k9 akm | 0.1 | 0.6 | 3123 | 33 |
| fiio k9 review | 1.37 | 0.5 | 4385 | 2 |
| fiio k9 ptt | 0.83 | 0.6 | 9985 | 2 |
| fiio k9 vs k9 pro | 0.44 | 0.7 | 8662 | 35 |
| fiio k9 pro akm | 0.33 | 0.7 | 7946 | 37 |
| fiio k9 pro ess driver | 1.61 | 0.5 | 383 | 78 |
| fiio k9 pro driver | 1.36 | 0.2 | 7147 | 40 |
| fiio k9 pro ess repair | 0.42 | 0.3 | 692 | 78 |
| fiio k9 pro review | 2 | 0.4 | 3273 | 67 |
| fiio k9 pro ess review | 0.27 | 0.4 | 9919 | 27 |
| fiio k9 akm review | 0.08 | 0.8 | 2693 | 19 |
