Bluetooth Cassette Player can be used as a personal cassette player. Insert your cassette tape and press PLAY to start listening to the old music. ezcap215 Bluetooth Cassette Player includes five control buttons - PLAY, STOP, FF, REW, DIR, and an Auto Reverse switch. The Auto Reverse function allows the device to repeatedly play both the front and back of the cassette tape without having to reverse it. ezcap215 Bluetooth Cassette Player also includes a volume adjustment knob and a 3.5mm headphone jack, you can connect headphones or a speaker system to listen to music. ezcap215 Bluetooth Cassette Player has two power supply options - AA batteries and DC power with the USB power cable. Function: Transfer cassette tape music directly to Bluetooth headphones or speakers. Automatic search and pairing of Bluetooth receiver. Flexible battery or USB powered operation. Stereo sound. With Auto-Reverse function. Compact and portable design. Specification: Bluetooth: 4.2 Effective distance: About 10m Supporting agreements: A2DP, AVRCP, AVCTP, AVDTP, HFP, SPP, SMP, ATT, GAP, GATT, RFCOMM, SDP, I2CAP Signal-to-noise ratio: >90db Frequency range: 2.402GHz - 2.480GHz Audio channel: Stereo L/R Audio input: Cassette tape Audio output: 3.5mm headphone jack, Bluetooth transmitter User interface Control buttons: PLAY, STOP, FF, REW, DIR. Auto reverse switch, Volume control. LED indicator: Fast flashing for searching Bluetooth receiver, slow flashing for successful pairing. Power supply: 2*AA batteries, or USB port power supply (5V DC adapter) Bit Rate: 128Kbps Dimensions: 113 x 85 x 32 mm Weight: 180g Package Contents 1 x ezcap215 Bluetooth Cassette Player, 1 x USB Power Cable, 1 x Earphone, 1 x Manual