Support Memory Card:NoSupport Apt-x:YesSupport AAC:NoModel Number:JR-CB2Package:YesFeature:NoneHigh Definition Support:NoneContent:Audio&VideoWIFI Standard:NoneWireless Type:bluetoothSound Track:SingleInterface:3.5mmBrand Name:JoyroomOrigin:Mainland ChinaCertification:CE,RoHSSpecial Feature 1:Colorful LED ringSpecial Feature 2:Facilitates operation at nightSpecial Feature 3:Safe for drivingSpecial Feature 4:AUX/TF/BT multi-mode connectionSpecial Feature 5:Satisfying different needsSpecial Feature 6:Built-in 300mAh batterySpecial Feature 7:Up to 14h battery lifeSpecial Feature 8:Dual-mic ENC noise cancellationSpecial Feature 9:Accurately picks up human voiceSpecial Feature 10:Clearer calling experienceSpecial Feature 11:High temperature resistant 3M adhesive that can be removedSpecial Feature 12:Space-saving magnetic plate that suits anywhereSpecial Feature 13:RX/TX transmitting & receiving 2-in-1 designSpecial Feature 14:Free switch between two modesSpecial Feature 15:Smart LED digital displaySpecial Feature 16:Easy to check remaining capacitySpecial Feature 17:Independent control buttonsSpecial Feature 18:Easy to play/pause music or answer/reject callsSpecial Feature 19:Latest BT 5.3 technologySpecial Feature 20:Low latencySpecial Feature 21:Stable connection within 30m