Bluetooth 5.2 Single-Ear Hook-on In-Ear Headphones with Digital Display for Business Use and Long Battery Life for Both Left and Right Ears Feature: 1: Single-ear digital display headset for both ears,180mah, 30 hours of music playback at a time 2: Bluetooth 5.2 stable link, effectively reducing freezes and faster transmission 3: 13mm large dynamic speaker unit, clear sound quality and rich details 4: High-definition voice calls, in-ear wearing, reducing noise impact .
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