usb player

Model MP3-6227 VCAN1458 VCAN0714 VCAN0734 VCAN0735  VCAN1484
Pictures  USB MP3 Player Car MP3 FM USB SD        
Price $14.9 $9.8 $9.5 $25.0 $23.2  $6.9
Unique Selling Point MP3 USB SD          Aux Audio Input            Bluetooth MP3 USB SD          Aux Audio Input            Bluetooth MP3 USB SD          Aux Audio Input            without Bluetooth USB SD DVD CD USB SD  CD  USB SD MP3
Cheapest
Amplifier 4 * 10W 4 * 10W 4 * 45W 4 * 45W 4 * 45W  4 * 10W
Function Automatic Adjust Servo System ; Anti-shock Memory Buffer for MP3 ; Auto-stored Memory ; 18 presets Memory(18FM) ; Electronic Audio control ; Mute/Load Control/Clock;MP3 WMA
Bluetooth No Yes Yes Yes Yes  No
RDS +$1.5 No No No No  No
CD No No No Yes Yes  No
DVD No No No Yes +$1.8  No
Remote Control Yes Yes Yes Yes Yes  Yes
ISO Cable +$0.5 No +$0.5 +$0.5 +$0.5  No
Power Supply 12V 12V 12V 12V 12V  12V
Clock Yes Yes Yes Yes Yes  Yes
Audio output Right + Left Audio 4 Speaker Right + Left Audio 4 Speaker 4 Speaker   Right + Left Audio
Play music from Phone Yes Yes No Yes Yes  No