Bluetooth knitted hat

DJUMAN-J LLC Verified independent store

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Transmission range: 10 meters Function; battery display, call function, support music Bluetooth protocol: 5.0 Channel; stereo How to use: head-mounted Whether single or dual ear: b ilateral stereo Applicable gift-giving occasions: opening ceremony, anniversary celebration, advertising promotion, trade fair, festival, public relations planning, business gift Color: RM-black Show more