Upgraded Plus Version Replacement Headphones Compatible SM-823D Pro, SM-824D1,SM-824D2 Pro Headsets Ordered in 2025, Not Compatible with Orders in 2024 and Before

ONLY FOR USE WITH IN-EAR WIRELESS TV HEADSETS PURCHASED FROM 2025: Compatible models include SM-823D Pro, SM-824D1, SM-824D2. DOES NOT WORK WITH ANY IN-EAR WIRELESS TV HEADSET PURCHASED IN 2024 AND BEFORE: Incompatible models include SM-823, SM-823D, SM-828D, SM-621D, SM-829D, non-Pro version of SM-823D Pro, non-Pro version of SM-824D1/SM-824D2. CLEAR, AMPLIFIED SOUND: Cordless TV headphones provide powerful, interference-free sound. Initial 14-hour charge offers up to 4 hours of use. PERFECTLY SYNCED TV AUDIO: With 2.4GHz RF wireless transmission frequency, the wireless TV headphones deliver <20 ms audio latency almost imperceptible to most ears. With this, regardless of what content you're watching, the audio and visual will always be perfectly synchronized. LONG RANGE, STAY CONNECTED TO THE TRANSMITTER: Ensures stable and reliable connectivity of up to 164 ft (50 m, barring any excessive physical or wireless interference). Need to start preparing dinner? No problem, do what you need to do without worrying about the audio cutting out