Brand: WJHH Article number: W2 Binaural Features: Auto connect, call function, support music Custom processing: Yes LOGO: can Bluetooth protocol: 5.0 Channel: stereo How to use: Earplug Whether single or double ear: Bilateral stereo Occasions for gifts: Opening ceremony, employee benefits, awards, anniversary celebrations, trade fairs, festivals, advertising promotions, housewarming, public relations planning, weddings, birthdays, business gifts colour: W2 + black silver ring cable lug cap +, W2 + cable + red circle black cap lug, W2 + white powder ring cable lug cap +, W2 + white gold ring cable lug cap + There may authorize its own brand: Yes Whether the cross-border supply: Yes Support for custom: stand by