Features: Easy to carry, put in your bag or pocket It is very convenient to carry. bluetooth-compatible Speaker Wireless is a powerful auditory device with 5w of power and excellent high and low bass. The advanced digital signal processor ensures deep bass with not distortions. Adopting advanced auditory technology ensures clear and detailed sound performances, making your every song as live performances. Long battery service high-capacity battery, lasts 3-4h, 50% lasts 8-9h of continuous playbacks, so you can enjoy your music without frequent charging. The manual knob perfectly 78-turn stained glass records, perfectly reproducing the texture of classical records. Specifications: Material: ABS Working voltages 3.4V-4.2V, speaker impedance 4, speaker power 5W Size: about 118x137x72mm/4.65x5.39x2.83in Color black/beige Package Includes: 1PCS bluetooth-compatible Speaker 1PCS USB charging cable 1PCS Manual note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.