Sony WH-1000XM4 Noise Cancelling Headphones – Black – Excellent Condition Selling a pair of Sony WH-1000XM4 in black, in excellent working condition. Fully functional and well cared for, with original box and accessories. Technical details and features: • Active Noise Cancellation using Sony HD Noise Cancelling Processor QN1 • 40 mm dynamic drivers with wide frequency response (4 Hz – 40 kHz wired) • Bluetooth 5.0 with SBC, AAC, and LDAC codec support • Multipoint connection (can connect to two devices simultaneously) • Battery life up to 30 hours with ANC (quick charge: ~5 hours playback from 10-minute charge) • Built-in microphones for calls and voice assistants • Touch controls for volume, track, and calls • Speak-to-Chat and Adaptive Sound Control (via Sony Headphones app) • Foldable design with carrying case Condition: excellent, no technical issues. Includes: original box, carrying case, USB charging cable, and 3.5 mm audio cable.