Weiyi Portable & Waterproof 5W Wireless Bluetooth Speaker With 12 Hour Battery Life & Multi-Functional With AUX and TF Card Slot- Bass and High Definition Sound,Yellow Best speaker with first-rate sound effect: High-Definition; stereophonic bass sound; powerful 5W-1.6inch driver; three patents specially employed for small speaker improvement (Suspension-type low-frequency resonant system bass port & low-frequency tracking & Anti sound distortion system). With superior stereophonic and bass, it is fully beyond all other equivalent specifications of portable speakers. Brilliant design of 30-feet connection scope: The latest Bluetooth 4.0 technology, combined with the top-ranking Bluetooth chipset and low shielding design, extends the connection scope of up to the unprecedented 50 feet.Mount the speaker in your living room and you will be able to enjoy the music anywhere within your house. Three-in-one function: Bluetooth 4.0 connection & TF card(4-32G) & 3.5mm audio jack for non-Bluetooth devices. Compact but equiped with high-capacity battery: 3.3*3.0*1.7 inch; Powered by the rechargeable 1000mAh Li-ion battery. The dual plastic compression guarantees its triple protection: waterproof & Dustproof & shockproof.