•Product name: Mini Bluetooth HiFi Receiver
•Wireless Mode/Chip: Bluetooth 5.0/BK Chip
•Complies with:A2DP/AVRCP/HFP/HSP/GAIA/SBC/AAC
•Audio interface:3.5mm AUX out & RCA out
•Antenna: built-in
•Battery: built-in 210maH lithium battery
•Current: <30mA
•Input Power: 5V DC
•Working distance:Up to 164ft (50m) in open air and up to 50-70ft (20-30m) indoors.
•Working temperature: 0 ~ + 40 ° C
•Product size: 60.4×54×22mm (34.5g)