Sennheiser RS-120 vs Sony WI-SP510 – Specs, Price & Comparison (2026)

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Brand	Sennheiser	Sony
Model No	RS-120	WI-SP510
Wired / Wireless	Wireless Headphone Specification	Wireless Headphone Specification
Headphone Type	Over Ear	Neckband

Magnet Type	Neodymium	Neodymium
Driver Diameter	NA	12 mm
Impedance	24 ohms	NA
Sensitivity	106 dB	NA
Frequency Response	22 - 19500 Hz	20 Hz - 20000 Hz
Maximum Power Input	NA	5 V DC
Noise Cancelling	No	No

Wireless Technology	Radio Frequency	Bluetooth
Bluetooth Version		5.0
Compatible Profiles		All Bluetooth Devices
Supported Codecs		A2DP, AVRCP, HFP, HSP, SBC, AAC
Battery Type	AAA Alkaline Battery	lithium-ion
Bluetooth Range		10 Meters Class 2
Battery Life	20 - 25 hrs	15 Hours
Charging Time	NA	3 Hours

Available Colors	Black	Black, Blue
Connector Plating	NA	NA
Cable	NA	USB C-Type Cable
Weight	230 g	30 gm
Other Features	- Total harmonic distortion: 0.7% - Volume and Tuning Control - Replaceable Ear Pads	Water resistant and washable with IPX5 rating EXTRA BASSâ„¢3 for deep, punchy sound Easy hands-free calling and voice assistant BluetoothÂ® wireless technology Up to 15 hours of playback from a single charge Turbo-charge your workouts Easy operation with buttons Conversation flows freely with easy hands-free calling, thanks to the built-in microphone Stream your favourite tracks from your smartphone with Blutooth wireless technology The soft, flexible and lightweight neckband design is shaped for comfortable, all-day wearing Conversation flows freely with easy hands-free calling, thanks to the built-in microphone
	Compare Sennheiser RS-120 with: boAt TRebel Airdopes 441 Pro boAt Airdopes Ultra Pro ACwO Decibel Philips TAT4205BK/94 JBL TUNE 120TWS	Compare Sony WI-SP510 with: boAt TRebel Airdopes 441 Pro boAt Airdopes Ultra Pro ACwO Decibel Philips TAT4205BK/94 JBL TUNE 120TWS

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