Features: brand new and high quality Transmit tape music to Bluetooth-compatible earphone or speaker directly. Auto Reverse function allows the device to repeatedly for play both front and back tape songs without changing the face. Volume adjustment knob and headphone interface. You can connect headphones to listen to music when you don'for t want to use BBluetooth-compatible devices. Flexible power supply mode: AA battery or USB power supply. High sound quality allows you to share your old memeries with your family and friends. Detachable design also space room for your travelling. Specifications: Material:ABS Size:11.3x8.5x3.2cm/4.45x3.35x1.26inches Color:Blue+Grey Flexible Power Supply Mode: AA Battery or Usb Power Supply. Stereo audio. Effective Distance:About 10m Supporting Agreement:A2DP, AVRCP, AVCTP, AVDTP, HFP, SPP, for SMP, ATT, for GAP, GATT, RFCOMM, SDP, I2CAP Signal-Noise Ratio:>90db Frequency Range:2.402GHz - 2.480GHz Audio Channel:Stereo L/R Audio Input:Cassette Tape Package Includes: 1 x Portable Cassette Tape Player note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.