1、Optimized the low-frequency loudness, with rich layers, fuller tone, and powerful bass, it can make you experience the same 9D sound effect. 2、Built-in 2 bass vibrators can create a shocking sound field, and you can enjoy the low-frequency sound waves of professional equipment. 3、With high-power output, iron-boron double speakers with dual-conductor can make blasting effect for low-frequency thickness, and you can enjoy the enchanting sound. 4、2200 mAh lithium battery supports for playing music about 12 hours in a row, and its charging time is about 3-4 hours. Thus, standby time can be up to about 10 days. 5、By the design of that the light can be turned off, you just need to gently press the pause button twice to light the warm lighting effect, enjoying a romantic good time with you. In high speed with strong anti-interference, it is compatible with about 99% of the market to mainstream Bluetooth products, and its effective connection distance is about 10 meters, which makes playing music is more free. 1 x Speaker1 x Audio Cable1 x Data Cable Item Type: SpeakerBluetooth Version: 5.0Frequency Response Range: 30HZ-15KHZOutput Power: 3WChannel: MonoProduct Size: Approx. 325 x 70 x 68MM / 128 x 27.6 x 26.8 inResolution: ≤35dBSignal to Noise Ratio: ≤65dBEffective Distance: Approx. ≤10 m / 32.8 ftSupply Voltage: DC5V- 1.0ABattery Capacity: 2200 mAhColor: Black / White (optional)