Cheap And Discounts 3.7V 5V MH-M38 Wireless Bluetooth Audio Module 5W+5W Amplifier MP3 Lossless Decoder Receiver Board M38 Module Wholesale. Buy Directly From Merchant MWSS PCB Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.