Monoprice Harmony Boombox Portable Bluetooth Speaker For Home, Outdoor, And The Monoprice Harmony Boombox Portable Bluetooth Speaker is perfect for in home, office, or on the go audio. High quality digital amplification with dual 57mm speaker drivers and custom DSP EQ tuning provide great sound at surprisingly high volume levels from such a small speaker. Bluetooth 5 ensures easy connection to your smartphone or PC, while Qualcomm TrueWireless Stereo (TWS) capability allows you to add a second Harmony Boombox to create a true stereo speaker array. IP67 dust and water resistance ensures robust, all weather build quality for on the go applications, while the large lithium ion rechargeable battery provides quick charging and all day playback. A built in microphone allows for voice activated phone calling from a Bluetooth connected mobile phone, while a 3.5mm auxiliary input provides an additional input option. High Quality, High Volume Audio Playback: 30 watts of digital amplification drive DSP EQ tuned dual 57mm speaker drivers. Wireless Connectivity Up To 32 Feet: Bluetooth 5 allows for normal connections at ranges up to 32 feet (10 meters). It also offers a Low Energy mode that can trade speed for range or range for speed. Qualcomm TrueWireless Stereo Mode: The Harmony Boombox Speaker supports the Qualcomm TrueWireless Stereo mode, which allows you to connect a second Harmony Boombox to create a true stereo speaker array. All Weather Operation: The IP67 ingress protection rating means that your speaker is protected against dust and immersion in water at depths up to 1 meter (roughly 3 feet). All Day Wireless Playback: The large built in lithium ion battery provides up to 10 hours of playback at 50% volume, ensuring a full day audio bliss.