Item No.: pro4 Transmission range: 10 meters Function: power display, call function, voice control, support music, multi-point connection, Bluetooth protocol: 5.0 Channel: Stereo How to use: earplugs Whether single or double ears: Bilateral stereo Applicable gift-giving occasions: weddings, birthdays, festivals, housewarming, trade fairs, advertising promotions, anniversary celebrations, business gifts, opening ceremonies, awards commemoration, public relations planning, others Color: White PRO4, Black PRO4, White PRO5, Black PRO5 Battery life: 2.5 (hours) Listed Year/Season: 2023
