X28 CalmMetal · Bluetooth 6.0 ANC + ENC Earbuds | BLUESEED
Bluetooth earbuds combine ANC and ENC with a JL7003D4 solution and 13mm copper-ring drivers. A portable case provides storage and charging; assess noise-control performance with the selected sample.

X28 CalmMetal · Bluetooth 6.0 ANC + ENC Earbuds
Chip: JL7003d4 Bluetooth version: V6.0 Noise-control functions: ANC + ENC Speaker size: 13mm (genuine copper ring) Earphone battery: 35mAh (with protective IC) Play time:>5 hours Charging compartment battery: 350mAh (with protective board)