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Sennheiser · 2020CX 400BT True Wireless CX400TW1
10% pricier ≈ $110
- Lowest frequency 5 Hz vs 20 Hz
- aptX
- Highest frequency 21,000 Hz vs 20,000 Hz
- Earbud weight (each) 12 g vs 6.1 g
- Driver size 7 mm vs 11 mm
10 true wireless earbuds at a similar price that compete with the FreeBuds Pro — what each does better, what it gives up and how the price compares.









