Features Using advanced multi-point connection technology, can be connected to two phones at the same timeTouch a button, you can make a call hands-free and enjoy the music stored in the phone.Simple wireless connection to existing audio gear, Compatible with any stereo line inputSpecification Bluetooth v4.0, Class 2:33’ (10m)Supports A2DP stereo profileSupports Bluetooth hands-freeSupports DSPUp to 12 hours talk time or continuouswith USB charger，1 month standbyPackages Includes Bluetooth Vehicle SpeakerphoneUSB CableUser manualOthers Information Dimensions：185L×135W×57H(mm) Product Weight: 0.22kg Quantity: 20pcs/carton Gross Weight: 4.5kg MOQ: 20pcs Payment: T/T in advance Lead Time: 3 weeks Warranty: 12 months