Mugast 2 * 5W Amplifier Board, Dc 3.7V-5V Bluetooth 5.0 Aux Audio Input Power Amplifier Board Hands-Free Calling And External Bu

Specification: Material: Pcb Bluetooth: 5.0 Voltage: 3.7V-5V Current: 1.5A-2A Pcba Size: Approx. 40 * 34 * 9Cm / 15.75 * 13.39 * 3.54In (Including Terminal) Package Weight: Approx. 40 G Package List: 1 * Power Amplifier Board 1 * Cable Selection Criteria: 1. Power Requirements: Voltage Dc Dc Voltage 3.7V-5V, Voltage Can Not Be Higher Than 5V; Current 1.5A-2A; (Specially Reminded That If Using 3.7V Lithium Battery, Please Ensure That Lithium Battery And Discharge Can Reach 1.5A, Some Lithium Battery Has Voltage But Current Is Not Please Use With Caution If It Is Stable Or Does Not Meet The Requirements; Otherwise It Will Always Restart Or The Sound Quality Is Not Good, Such As Broken Sound/Distortion. Speaker Requirements: (Satellite) Left And Right Channel Sub-Box Speaker: Select 4 Ohm (O)/5W*2 Full-Range Speaker (Special Reminder If You Use 3.7V Lithium Battery, Please Ensure That Lithium Battery And Discharge Can Reach 1.5A, Some Lithium Battery Has Voltage But Current Is Unstable Please Use Caution If You Cant Meet The Requirements; Please Choose 4 Ohms (O) / 3W * 2 For The Speakers. 2. 3P Socket Out Audio Output: If You Need To Connect Other Power Amplifiers Can Be Connected From Here (Intermediate Audio Ground, Left And Right Are L And R Respectively. Bluetooth Connection: The Mobile Phone Starts Bluetooth Detection From The Setup Menu, So That The Mobile Phone Is Detected By The Device, And Then Goes To The Bluetooth Menu - Search For The Device Or The Paired Device. After Searching (Ymx-868Bt) Touch Pairing, It Also Hears Connected Successfully Or Prompts To Complete The Pairing; Note: It Is Not The Smartphone (Android System) To Enter The Password -0000; The Product Bluetooth Device Name Ymx-868Bt.