1、BT Cassette Player includes BT transmitter. It will transmit tape music to your BT receivers, like BT earphone, BT speaker. You can listen to the tape music by your BT earphone or speaker conveniently. BT Cassette Player will search and pair the BT receivers automatically after connect power, and the pairing speed is fast. It\u0027s with LED indicator to notice you the BT status. 2、It can be used as a personal cassette player. Insert your tape, and press PLAY to start listening to the old music. 3、Includes 5 control buttons: PLAY, STOP, F.F, REW, DIR, and an Auto Reverse switch. Auto Reverse function allows the device to repeatedly play both front and back tape songs without changing the face. 4、It also includes volume adjustment knob and 3.5mm earphone jack, you can connect earphone or speaker system to listen music. 5、It has two power supplys: 2*AA batteries (Not included) and DC power with the USB power cable. Features: BT Cassette Player includes BT transmitter. It will transmit tape music to your BT receivers, like BT earphone, BT speaker. You can listen to the tape music by your BT earphone or speaker conveniently. BT Cassette Player will search and pair the BT receivers automatically after connect power, and the pairing speed is fast. It's with LED indicator to notice you the BT status. It can be used as a personal cassette player. Insert your tape, and press PLAY to start listening to the old music. Includes 5 control buttons: PLAY, STOP, F.F, REW, DIR, and an Auto Reverse switch. Auto Reverse function allows the device to repeatedly play both front and back tape songs without changing the face. It also includes volume adjustment knob and 3.5mm earphone jack, you can connect earphone or speaker system to listen music. It has two power supplys: 2*AA batteries (Not included) and DC power with the USB power cable. Specifications: Type: Cassette Player BT: 4.2 Effective Distance: About 10m Audio Channel: Stereo L/R Audio Input: Cassette tape Audio Output: Earphone (3.5mm stereo jack), BT transmitter Power Supply: 2 * AA battery(Not included), or DC 5V USB power Package Size: 15*11*4cm / 5.9*4.3*1.6in Package Weight: 250g / 8.8oz Package List: 1 * Cassette Player 1 * USB power cable 1 * Earphone 1 * Manual 1 * Cassette Player 1 * USB power cable 1 * Earphone 1 * Manual