Sennheiser RS 4200-UK alternatives, similar headphones

Poly - Plantronics .Audio 615M
Specifications

B-Speech ISAS
Specifications

Philips Magnavox MHS1100
Specifications

Ultimate Ears SuperFi 5vi
Specifications

Ultimate Ears SuperFi 5
Specifications

Ultimate Ears MetroFi 100v Noise Isolating Mobile Headset
Specifications

Sony DR BT160AS
Specifications

Maxell Color Buds CB-Green
Specifications

Maxell Color Buds CB-Gold
Specifications

Maxell Color Buds CB-Red
Specifications

Maxell EB P410
Specifications

Maxell EB P411
Specifications

Sennheiser Ear Canal 300-II Travel
Specifications

Sennheiser CX 400-II Precision
Specifications

Sennheiser CXL 300-II Precision
Specifications

Sennheiser MX 60 Street II
Specifications

Sennheiser MX 65 VC Street II
Specifications

Sennheiser VMX Office
Specifications

Sennheiser CX 550 Style II
Specifications

Sennheiser MX 95 VC II
Specifications

Sennheiser OMX 95 VC II
Specifications

Sennheiser PC 21
Specifications

Sennheiser BW 900 Mobile Business Solution
Specifications

Sennheiser PMX 80
Specifications