Transparent Mecha Style Wireless Bluetooth SpeakerFeatures:The product uses fully transparent and highly transparent PC, and the internal precision components are clearly visible.Mini and portable, you can take it with you and enjoy great music anytime, anywhere.It uses a high-cost audio processor to actively determine the frequency of the audio source signal, automatically sets fine frequency division points, expands the system frequency response range, and achieves low-frequency dive, natural and clear mid-frequency, and high-frequency surround sound.Colorful colors for you to choose, classic and versatile, can be matched with various scenes.Provides hands-free calling and card playback capabilities. 400mAh battery capacity, can play music for 4 hours.Product Description:Frequency response range: 100HZ-20KHZSignal-to-noise : 75dBEffective distance: 15mRated power: 5wRated voltage: 12vPackage list1*audio1*data cable1*Instruction manual