Sennheiser Accentum Plus Wireless Headphones in black sub the Atlas Z-plugs have a

the Atlas Z-plugs have a plastic outer barrel and the Tin-Cobalt plugs have a metal outer barrel

solder-free construction speaker plug

more advanced ESS ES9038Q2M DAC chip with a minimum-phase slow roll-off filter for more natural sound

Supports the use of multiple headphones receiving the RF signal from one transmitter (use HDR 120)

Sennheiser Accentum Plus Wireless Headphones in black sub the Atlas Z-plugs have aSpecifications Wearing style Headband stereo headphones Ear Coupling Around the ear, circum aural Connectivity Bluetooth 5. 2 compliant, class 1, 10 mW (max) Transmission frequency modulation 2,402 MHz to 2,480 MHz; GFSK, 4 DQPSK, 8DPSK, 4 QPSK, 8PSK Supported Profiles A2DP, AVRCP, HFP, HSP, GATT Supported codecs SBC, AAC, aptX, aptX adaptive, mSBC, CVSD Speaker principle Dynamic Speaker type size37mm diameter Speaker frequency range 10 Hz to 22 kHz