KST-984 wireless headphone 1. Stereo effect 2. High quality products 3. MOQ: 1000/pcs 4. T/T,Western Union Best wireless bluetooth headphone/headset ... with Mic, insert it to the headphone and computer, then you can chatSpecification:1. System : VHF/RF2. Modulation: FM3. Mode: Mono4. Operation ... 24 hours, thank you! KST-984 4 in 1 cheap Wireless Headphone/ wireless headset