PRODUCT GRADING (Grade A) - Excellent Condition with Minor if any signs of use and wear > Refurbished to the highest standards. Retail Box WHAT IS IN THE BOX Topping D50S DAC 2 Bluetooth LDAC HiFi Decoder PRODUCT DESCRIPTION  D50s already has Hi-Res Audio Wireless certificate and SONY LDAC certificate. It uses CSR8675 chipset to support LDAC/AAC/SBC/aptX/aptX-LL/aptX-HD protocol. To get better sound quality, it will decode ES9038Q2M.And Bluetooth module could turn off separately at the menu.D50s uses XU208 which is the second gen of XMOS for USB interface. We also customized Thesycon drivers for D50s(Win7 or above). These make D50s provide better support for DSD native. PRODUCT INFORMATION Brand - Topping Measured - 11.9cm*11cm*2.6cm Weight - 510g Power input - DC5V/1A Country of Origin - China Colour - Black Input - USB/OPT/COAX/BT Line Out Output - RCA