Bluetooth 5.3 compatible wireless headphones with approximately 10 hours of playback. - Brand: smacce - Model: PT-OHED01-BK (BLACK) - Bluetooth Version: 5.3 - Codec: SBC, AAC - Battery Capacity: 200mAh - Playback Time: Approximately 10 hours - Frequency Response: 20Hz-20kHz - Driver Size: 40mm - Weight: Approximately 148g Unopened. I received these as a gift, but ended up not using them, and a long time has passed. I am selling them because I am in financial difficulty. Price negotiations are welcome. Thank you for your consideration.