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Sennheiser PC121 Wireless Headset vs Sennheiser CX 215 Wired Earphones

Sennheiser PC121 Wireless Headset vs Philips SHP1901 Wired Headphones

Sennheiser PC121 Wireless Headset vs Sony MDR-S70AP Wired Headphones

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Sony MDR-222KD Wired Headphones vs Sennheiser PC163 Wired Headset

Sony MDR-222KD Wired Headphones vs Sennheiser MX365 Wired Earphones

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Sony MDR-222KD Wired Headphones vs Panasonic RP-TCM125 Wired Earphones