Portable Retro-Style Stereo Bluetooth Boombox Speaker Meets Modern Tech The ION Boombox Deluxe Retro Wireless Bluetooth Speaker is a full-featured 80's-style retro stereo cassette boombox made for the modern world. It has anAM/FM radio with an extendable antenna, cassette deck, functioning VU meters, and bass and treble controls, just like you remember. It also has the latest Bluetooth® technology and built-in rechargeable battery to stream your favorite music anywhere. Multiple Ways to Listen to Your Music Pop in your favorite cassette tape from the 80's, tune-in your favorite station on the AM/FM radio, stream music using Bluetooth technology, or plug in a USB thumb drive or microSD card with pre-recorded music. The dual full range drivers will pump out powerful bass and clear highs, or use the built in 1/8" jack to connect your classic headphones. Record on the Go You can record to cassette tape, USB thumb drive, or microSD card from the cassette deck, AM/FM Radio, Bluetooth, USB thumb drive, microSD card, built-in microphone, or external source via the 1/8" auxiliary input. VU meters help you adjust your recordings to ideal levels and separate bass and treble controls allows you to dial in your exact tonal customization. Multiple Ways to Power Your Play The built-in Lithium-ion battery will power your speaker for up to 10 hours on a charge. Plug in the included AC power cord to continue listening while you recharge your battery. You can also use 6 'D' size alkaline batteries.