TPA3116D2Mr. Santa KilbackMrs. Juliet Vandervort BluetoothMs. Eliane Predovic-compatible AmpliMs. Margarette BlandaAmely Ritchie Sr.fier Augustine HackettBoard Dual Way Cleora Hettinger50W+50W Mrs. Florence GreenfelderSupportAugustus BauchProf. Adalberto Hills TF CardFabiola O'Keefe U DiskJon Kreiger

Description:
1. The digital power amplifier chip TPA311602 is used to operate in class D with high efficiency. The high integration of advanced modulation system reduces the number of components and integrates self-protection circuits, including overvoltage, undervoltage, overheating DC detection and short circuit protection.
2. The transmission distance of heat-resistant enhanced package Bluetooth-compatible is about 10 meters. Different transmission distances are different in different environments.
3. If DIY speakers are used, it is better not to use materials that have screen effect on Bluetooth-compatible signal.

Specification:
Product model: HW-428
Input Voltage: DC 12-24V
Storage mode: support TF card, U disk
Output power: 50w*2
Channel Number: Double Channel (Left and Right Channel Output)
Transmission distance: about 20m
Product size: 73*68*16mm/2.87*2.67*0.62''
Packing weight: 42g

Operation:
1. Key function:
Mode: Bluetooth-compatible, U-disk, TF-card switching mode
P1ay: Play/pause mode
Prev/V - "Short Press" for switching "Last Song" and "Long Press" for "Decreasing Volume"
Next/V+: "Short Press" for switching "Next" song and "Long Press" for "Increasing Volume"
2. When the module is powered on, the first is the green light and blue light. When connected to Bluetooth-compatible or U disk or TF card, the blue light will flash to show that it is working at this time.
3. In the power-on state, the module shows the green light, accompanied by the blue light-flash, default to Bluetooth-compatible mode. Mobile phones or cars open Bluetooth-compatible, search module Bluetooth-compatible name HV-BT, connection success and disconnection will have voice prompts, at this time Bluetooth-compatible preference, when inserting U disk or TF card will be preferential choice of U disk and TF card and will also have prompts.

Note:
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.