SUNMAY Wireless Bluetooth Speaker Bulit-in 4400mah Battery with Power Bank Function Dual-channel 20W (Dual 10W Drivers) Music Speaker Player for Bluetooth Enabled Devices Silver Sunmay sleek design with a contemporary look that matches most furniture. It is ideal for personal usage, indoor party or outdoor BBQ or picnic with friends and family. Highly powerful dual-speaker for excellent sound, it is clear and loud and has decent bass tones, mid tones, and high tones. Buttons on the top of the speaker control everything. You can increase or decrease the volume, skip forward to the next song or skip back to replay the previous song, pause and play and answer or end a phone call. Built-in 4400mA rechargeable battery for up to 10 hours of playtime. Built-in microphone for hands-free speaker phone calling Easy to pair - No code/pin needed. With the ultra-compact size and the soft touch rubber design, it can be easily fitted into a backpack, suitcase, or a travel bag. Plays all Audio devices through 3.5mm Aux in Jack. You can get an audio cable for using the speaker with you computer, laptop, mp3 player or any device that doesn't have bluetooth capabilities.