Features:Simple setup and installationAllows a speakerphone connecting to two phonesAdvanced noise suppression and echo cancellationFull Duplex & high performanceBuilt in speaker and microphone;To make/answer/end/reject/redial a call by the bluetooth speakerphoneAutomatically re-connection between speakerphone and mobile phoneSpecifications:Bluetooth Specification: V3.0、 Class 2、 10 metersOperating Frequency Band: 2.4GHz ~ 2.48GHz;Rechargeable battery: 3.7VDC、 500mAHNormal Charge Time: up to 3 hours (approx)Talk time: up to 20 hoursStandby time: up to 1000hours Package:1 x Bluetooth Handsfree Speakerphone1 x Car Charger1 x USB cable1 x User Manual1 x Iron Holder