Specifications: 27mm mini unit to bring clear and rich sound quality. 8 hours play time with a single charge of 45 minutes. Standard 3.5mm port allowing connection for mobile phone, tablet, MP3, TV and so on. Lightweight and compact design, easy to carry for various places. Item Name: Mini Speaker Material: ABS, Metal Interface Type: 3.5mm Plug Sound channel: 2.1 Frequency Response Range: 100HZ-20KHZ Output Power: 5W SNR: >70dB Power Supply: Built-in Lithium Battery (Included) Battery Capacity: 250mAh Play Time: about 8 hours Horn Number: 1Pc Operation Mode: Button Operation Power Mode: USB Features: Mini Size, 3.5mm Plug, Plug and Play, Stereo Sound, Rechargeable Size: 42.5mm x 58mm x 31.5mm/1.67" x 2.28" x 1.24" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Mini Speaker 1 x Charge Cable 1 x User Manual