Experience exceptional audio quality with the Lenovo K30 Portable Hifi Bluetooth Wireless Speaker. Designed for outdoor use, this speaker delivers immersive music with surround sound bass, making every listening session enjoyable. The waterproof feature ensures durability in various environments, while the built-in mic allows for hands- calling. SPECIFICATIONS Category Portable Speaker Cabinet Material Metal Audio Crossover Full-Range Waterproof Yes Communication Induction Speaker Type Portable Channels 2 (2.0) Battery Yes Use Home Origin Mainland China Sound Mode Stereo Sound Mode Voice Control Yes Power Source Battery, USB Loudspeaker Enclosure 1 Input Power(W) <25 W Input/Output USB Personal Assistant None Tweeter Material Other Acoustic Enclosure Other Control Hi-band Bluetooth Version 5.0 Total Harmonic Distortion 1 Features Wireless Subwoofer, Wireless Rear Speakers, USB-DAC Woofer/Widerange Material Other Display Screen No Subwoofer Cabinet Material Plastic Certifications CE, EAC, FCC Impedance Other Tweeter Type ELECTROSTATIC Output Power 3W Active Noise-Cancellation Passive Remote Control No Support Memory Card No Material Metal Built-in Microphone Yes Frequency Range 20Hz-2KHz Key Points and Features: Exceptional Sound Quality: Enjoy stereo sound mode and immersive bass. Waterproof Design: Suitable for outdoor use without worrying about water damage. Built-in Microphone: Easily take hands- calls. Wireless Connectivity: Bluetooth 5.0 for seamless wireless connection. Portable and Durable: Metal and plastic construction for durability on the go. : CE, EAC, and FCC certifications ensure quality and safety. Why choose? This speaker combines high-quality audio performance with durability and convenience, making it an i choice for music enthusiasts who enjoy outdoor activities. Please Note: Battery and USB power sources provide versatility. The speaker does not support memory cards. Remote control functionality is not included.   Feature : 1.Metal composite diaphragm, shocking HIFI-level sound quality 2.Upgrade to Bluetooth 5.0, low power consumption and more stable signal, all devices with Bluetooth function can be used 3.Long battery life, 1200mAh large battery, charging for 3 hours, listening to music for 6 hours 4.High-definition hands- call, built-in high-definition microphone, clear and bright voice 5.The buttons are easy to operate, the silicone buttons are simple and comfortable, and the response is sensitive 6.Support TWS network interconnection, enjoy stereo surround sound