Sennheiser CX 300S vs Koss UR23i – Specs, Price & Comparison (2026)

ALERT

Sennheiser CX 300S
Rs.3,490.00

Koss UR23i
Rs.3,500.00

Brand	Sennheiser	Koss
Model No	CX 300S	UR23i
Wired / Wireless	Wired Headphone Specification	Wired Headphone Specification
Headphone Type	In Ear Canal	Over Ear

Magnet Type	Dynamic	Neodymium
Driver Diameter	NA	40 mm
Impedance	18 ohm	34 Ohms
Sensitivity	118 dB SPL	94 dB/mW
Frequency Response	17 Hz - 21000 Hz	20 Hz - 20000 Hz
Maximum Power Input	NA	NA
Noise Cancelling	AMBIENT	NA

Available Colors	Black, White, Red	Black, White, Blue, Green
Connector Plating	3.5 mm Angled	3.5 mm Gold Plated Jack
Cable	Tangle- Free Flat Cable	1.4 m
Weight	12 Gm	NA
Other Features	Built-in microphone and remote for call and music control. Tough and tangle-free cable for long-lasting listening enjoyment. Smart remote enables you to pause music and take calls across all devices. Ergonomic in-ear design for ambient noise isolation and undisturbed listening.	- One touch Microphone - Unique D-profile - Superior Isolation - Closed back design
	Compare Sennheiser CX 300S with: Sennheiser HD 300 Sennheiser HD 229 Sennheiser HD 419 Beyerdynamic DTX 910 Philips SHO4205BB-10	Compare Koss UR23i with: Sennheiser HD 229 Sennheiser HD 419 Philips SHO4205BB-10 Beyerdynamic DTX 910 Sennheiser HD 300

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