No adapter included. Kindly Reminders! This headphone receiver is compatible with all 2.4GHz wireless TV headphone models, including SM-823 pro, SM-823D Pro, SM-824D1, SM-824D2, SM-825D Pro, SM-8245, SM-828D1, SM-828D2, SM-829D1, SM-829D2, and wireless TV speaker models SM-621, SM-621D etc. 2.
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