PRODUCT: colorful led pulse bluetooth speaker COLORS: yellow， grey， black ABOUT ME: 01. I am a new product. You can use me to listen music when you are outdoor or indoor. 02. I can compatible with all bluetooth enabled digital devices 03. I can be as a mobile power bank. My capacity can charge your mobile phone. 04. I have led flash light offers disc-like dancing experience 05. I built-in microphone， support hands free calls 06. I has FM function. (fm function will better when i am pluged in audio cable) 07. I can directly playing mp3 files in TF / micro sd memory card 08. I can play music in usb disk directly. SHIPPING: ship your order within 24 hours once your payment is confirmed. DELIVERY: for the united states， it will take around 7-16 days to arrive after shipping， it depend your shipping address and customs clearance， it will take more days to arrive europe countries. ABOUT STORE: we are a professional electronic bluetooth speakers， bluetooth headset company. we have professional R!#!amp!*!D team， we have own factory， own warehourse， own sales team and customer service. buy from us that choose the professional team to service for you. FEATURE: 01. product name: portable speakers 02. battery capacity: 2000mAH 03. bluetooth version: 3.0 04. transission range: 10m 05. colors: yellow， grey， black 06. music play: 10 hours 07. frequency range: 20hz-18khz 08. size: 210*80*80mm 09. work voltage: 3.7v 10. snr: ≥80db 11. standby time: ≥90 hours 12. weight: 610g PACKAGE INCLUDE: 1 x bluetooth speaker 1 x usb charge cable 1 x aux in cable 1 x user's manual