Model: QY7Quantity: 1Material: PlasticColor: Black + GreenChip: CSR 8645Bluetooth Version: V4.0Bluetooth Profile: Support HFP、 HSP、 AVRCP、 A2DP and APTXRF Range: About 10 metersNoise Reduction: CVC Noise ReductionBT Frequency: 2402-2480 MHzTalk Time: About 4.5 HoursMusic Time: About 4.5 HoursStandby Time: About 175 HoursCharge Time: About 1-2 HoursNoise Reduction: CVC 6.0Battery Capacity: 80mAhVoice support: Support Chinese voice promptCompatible with: Most of the mobile phone、 iPad、 and computer、 etc.Battery Type: Rechargeable lithium-ion polymer batteryFunction:Answer/End/Reject/Transfer a call; Call waiting; Call redial; Voice dial; Mute; Dual connection; Voice notification; Noise cancellation; Volume adjustment; Clear music stereo sound; Previous/Next musicFeatures: With wireless music and call functionSuper noise reduction function、 have better sound qualitySupport all Bluetooth enabled devicesPortable、 in-ear type; it is an essential Bluetooth earphone for outdoor sports loverSuper strong noise reduction、 CSR4.0 Bluetooth version; clear sound quality、 perfect sound experienceCan be connected to two mobile phones simultaneouslyVoice prompt