We offer mono bluetooth headphones.Model Number: SC-XCZ-BT202Type: Bluetooth earphone Style: Ear Hook Communication: Wireless Transmit Range: 10M Connectors: USB Use: Mobile Phone Color: Black or Customized Bluetooth Version: 3.0 Function: Microphone, Noise cancelling Standby Time: 50 hours Talking Time: 3 hours Charge time: 23 hoursSize: 37*17*10mm Certification: CE FCC RoHS Spec.&Feature: -- Customized Color&Logo: Yes(Above MOQ)-- Weight: only 7g-- Warranty: 1 year-- Connect with 2 mobile phones at same time. Answerreject redial call. Adjust volume when listen musicchoose next or preview song-- Small and lightweight , New fashionable design. Easy to use, comfortable for talking and music playingApplication:-- Mobile phone with BT function.PDA device.etcPackaging & Delivery:-- 1* Earphone-- 1* USB charger -- 1* Ear hook -- 1* User guide-- Packaging Details: Color box, Giftbox , Tin box or Customized.-- Delivery Detail: 5-7 working days after order confirmed No minimum order quantity is limited and your small orders are welcomed.