JBL Free X Specs

Audio Driver size (mm): 5.6
Battery Lithium-ion polymer (3.7V, 85mAh)
Battery Life 4 hours play time, 4 hours talk time
Bluetooth Bluetooth 4.2
Frequency Response 10Hz – 22kHz
Impedance 16 ohms
IP Rating Splashproof, Sweatproof
Material Ear tip: Silicon
Sensitivity Driver sensitivity at 1kHz/1mW (dB) < 9.5dBm
Weight 0.52
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