BT 5.4 Earphones with Earhooks Built-in Mic Headset Ear Buds for Workout/Running

Wireless Earbuds with Earhooks Built-in Mic Earphones BT 5.4 Waterproof Headphones Ear Buds for Sports Running Workout Gym. BT pairing: M113. BT version: V5.4. Earphone battery: 50 mAh 501012. Speaker size: F14.2mm copper ring speaker.

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