[High Performance]This Bluetooth Amplifier Board entitled with high performance according to strict rule, the high cost- effective amplifier module can use with Bluetooth 4.0 receiver amplifier card[USB Charging]This XH-A153 Bluetooth amplifier board adopted USB charging mode, which can be connected with charger, bank, computer for charging. The design is easy to use in the practical life[High Quality Material]This digital amplifier board made of materials in high quality,durable,supporting , which can keep long service life so that you can use for a long time[Easy to Install]AMP board's installation is simple, which does not require particularly complicated operations.color:Green + blackMaterial:plasticPackage Contents:2 x XH-A153 Low Wireless Bluetooth Digital Amplifier Board4 x XH2.54-2P 15cm WireOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.