Sennheiser RS 120-W B-Stock

B-Stock, Sennheiser RS 120-W wireless headphones, on ear, open back, dynamic, frequency range: 22 Hz -19,5 kHz, impedance: 24 ohms, sound pressure level: 100 dB, driver size: 30mm, velour ear pads, connections transmitter: RCA and 3,5mm stereo jack, mains connection, battery life headphones: up to 20 hours, wireless range: 60m (digital transmission via Bluetooth LE Audio Wireless, not Bluetooth Classic compatible), LE Audio Broadcast enables several headphones connected with one transmitter, listening sound profiles: speech, music or neutral, delivery content: headphones HDR-120, TR-120 transmitter/loading station with stereo RCA cable, mains cable with international adapters, 2 batteries, audio adapter 3,5mm, quick start & safety instructions included, weight headphones (batteries included): 215g, color: black, B-Stock with full warranty, may have slight traces of use