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Sennheiser CX 400BT True Wireless review: New premium earbuds sound great but are a bit chunky - CNET
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Sennheiser launches CX 400BT TWS earphones offering premium sound at a more affordable price - NotebookCheck.net News
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Sennheiser Auriculares Cx 400bt Bluetooth | Sennheiser Headphones Bluetooth - Earphones & Headphones - Aliexpress
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Sennheiser Consumer Audio CX 400BT True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls - with Noise Cancellation and Customizable Touch Controls, White : Everything Else - Amazon.com
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The Sennheiser CX 400BT True Wireless Earbuds Provide Complete Control Over Your Sound Experience - IMBOLDN
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Amazon.com: Sennheiser Consumer Audio CX 400BT True Wireless Earbuds - Bluetooth In-Ear Headphones for Music and Calls - with Noise Cancellation and Customizable Touch Controls, White : Everything Else
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