Features: brand new and high quality Multifunctional Wireless Speaker : A variety of functions to choose, music playback, call status, etc. Powerful Noise-reduction Microphone: Transparent sound is clear and bright, and the pickup is clear. The use of high-sensitivity microphones has the characteristics of anti-interference and clear pickup. Small and Portable Design: You can take it anywhere, put it in your pocket, school bag, on the table, and decorate your home and office. The Ultimate Experience of Sound: Lossless music auditory feast, a real shocking experience. Wireless transmission, stable and fast transmission, effective distance, for high fidelity sound quality, restore music scene. Specifications: BT: V5.0 BT Name: S518 Battery Capacity: 1500mah (built-in) Life Time: 5 Hours Charging Time: 1--2 Hours Speaker: 5w Audio Track: 2.0 Frequency Range: 2.4ghz Input Sensitivity: 400mv Wireless Transmission Distance: 10 Meters Separation: 90db Frequency Response: 70~20khz (+-3db) Signal to Noise Ratio: 80db for Play Format: Wav, Mp3, Wma Tf Maximum Support: 32g (not Included) Operation Mode: Button Usb Cable Length: 50cm Input Voltage: for Dc 5v 2a Interface Type: Micro Usb / Aux / Tf Card Holder / 2.0 Usb Material: Plastic Color: Black, Blue, Red, Gray Product Dimension: approx. 21.5x9.1x9.4cm/8.46x3.58x3.70inches Net Weight: 250g/0.55lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1PC Wireless Subwoofer Speaker