The Sennheiser RS 140 is a wireless RF headphone system for hi-fi and television monitoring use. Featuring a switchable built-in dynamic compressor, a balance control for optimum right/left volume adjustment, and comfortable padded earcups and headband, the RS 140 is a great option for enjoying your home entertainment system without the hassles of wires.
| Type | Circumaural Closed-Back Wireless Stereo RF Headphone System |
| Frequency Range | 18Hz - 21kHz |
| Transmitting Frequency Range | 926.1/926.8/927.5MHz(up to 100m, trans./rec.) |
| Impedance | Not Applicable |
| Sensitivity | 110dB SPL @1kHz |
| Maximum Input Power | Not Applicable |
| Connectors |
2 x RCA Phono 1 x 1/8" Stereo Mini 1 x 1/4" Stereo Phone Adapter |
| Weight |
Transmitter: 15.2 oz (430g) Receiver: 9.9 oz (280g) |