Mini Bluetooth Speaker Portable Wireless Speaker Sound System 3D Stereo Music Surround Support TF AUX USB Product Description 1.Battery capacity:Rechargeable lithium battery, the battery capacity of 1200mAh, can continue to play 3.5 hours 2.Can support 4 kinds of mode to playing music, bluetooth, TF, U disk mode, 3.5 mm audio line mode 3.bluetooth version:V3.0+EDR 4.bluetooth transmissio distance:10 meters 5.frequency response range :85hz~20KHz 6.sigani-to-noise ratio:84db or higher 7.sensitivity:80db+2db 8.size:190mm*60mm*56m Package includes 1*NBY-18 Speaker 1*Audio Cable 1*Charging cable 1*User Manual Transport: 1. We arrange the shipment from Monday to Friday. The shipping includes packaging and handling fees. 2. It takes approximately 30-40 days (USA, CA, AU,). Other countries 40-60 business days, the exact delivery time depends on postal process. 3. If you do not receive your winning item (s) within 60 business days, please leave a message or E-mail contact us, we will do our best to solve any problems with you. Feedback: 1. We will automatically leave positive feedback to every buyer to complete the transaction. 2. We maintain high standards pursuit of 100% customer satisfaction! Feedback is very important to us. 3. Good communication can solve all the problems, if you have any questions, please contact us, we will promptly solve the problems you are experiencing