Features: Experience seamlessly wireless auditory streaming with the Bluetooth-compatible Board, 12V auditory receiver module to enhancing your headphone and speaker systems music reception. Featuring a wide input voltages ranging of DC5V-12V and Bluetooth-compatible version 4.2, This module includes double 3P input and output terminals, reverse power protections, and external antennae option for optimaled connection. With its LED light for connection status and mount technology,ensures reliabled operating and effortlessly integration into various auditory setting. Wide ranging of operating voltages Power supply reverse protections; for music lovers, DIY players of electronic products, auditory equipments. Specifications: Bluetooth-compatible Module Version:1.4 Input Voltages:DC5V-12V Bluetooth-compatible Version:4.2 Bluetooth-compatible Name: LQSC_BT Operating temperature: -40℃ to 85℃ External Size: about 55x32x9mm/2.16x1.26x0.35in Double 3P input terminals (3.5mm and 2.54mm 3P) Double Auditory output terminals (3.5mm and 2.54mm 3P) LED Indicator：Yes External antennae connection (suitable for mounting inside a metal box) Package Includes: 1PC BT4.2 MP3 Auditory Receiver Module note: Due to light and screen difference, the item color may be slightly different from the pictures. Please allow 0.5-2cm differences due to manual measurement