Sennheiser RS 40 alternatives, similar headphones

JPL Telecom JPL-100M-USB
Specifications

JPL Telecom JPL-100B-USB
Specifications

JPL Telecom JPL-Element-X500
Specifications

JPL-Element-BT500D
Specifications

JPL Telecom Commander-1
Specifications

JPL Telecom Commander-2
Specifications

BlueTake i-PHONO BT420 EX
Specifications

Stealth C6-300V
Specifications

Stealth C6-300X
Specifications

ADAM Audio STUDIO PRO SP-5
Specifications

Campfire Audio Ara
Specifications

Cambridge Audio Melomania Touch
Specifications

Sennheiser HD 458BT
Specifications

Sennheiser HD 560S
Specifications

EPOS I SENNHEISER IMPACT SC 230
Specifications

Sennheiser IMPACT SC 45 USB MS
Specifications

Sennheiser HD 250BT
Specifications

EPOS I SENNHEISER SH 350
Specifications

Sennheiser SC 165 USB
Specifications

Sennheiser CX True Wireless
Specifications

Sennheiser RS 115-8
Specifications

Sennheiser CX Plus
Specifications

Sennheiser PX 100 Flight
Specifications

Sennheiser PX 200 Flight
Specifications