Portable Solar Bluetooth Speakers, Wireless Outdoor Speaker With Subwoofer, Large Powerful Stereo Speaker With Power Bank Features: High-powered speakers, using full-range high-performance speakers and subwoofers, diaphragm design, bringing the shocking sound from large speakers. When two audios interconnect, intelligent allocation of left and right channels, experience the real stereo surround sound, as if into the concert scene. High-powered speakers combined with diaphragm, with HiFi sound quality sound effect, multiple combination, enjoy the cinema- experience. Built-in Bluetooth 5.0 chip, the transmission is very stable, the transmission distance up to 10 meters, you can enjoy the wireless. Equipped with a suitable lanyard, business travel can directly hang the audio in the hands, everywhere you can enjoy music. most mainstream devices, as long as there is Bluetooth can be connected at any . Product Parameters: Product name: Bluetooth Audio Color:Blue Materia:Plastic Battery Capacity:1200mAh Speaker power:5W*1 Transmission Distance: 10 meters Charging time: 3 hours Working time: 3 - 5 hours Signal to noise ratio:95dB Distortion rate: