K300 Pro Max Universal Wireless Bluetooth Audio Mixer Live Sound Card for Mobile Phone/PC ?Various Sound Effects and Scene Modes: The sound card supports multiple scene modes and sound effects, adding fun to the sound ?Large Battery: With a built-in 1200mAh large rechargeable battery, it provides long-lasting power for entertainment, avoiding frequent charging and eliminating the problem of insufficient battery power ?Strong Compatibility: Equipped with a universal USB interface for charging and connecting to computers; ?standard 3.5mm jacks provide stable audio signal input and output. ?Compatible with main smartphones and computers ?Wireless Connection: Offers both wired and wireless connections. ?Wired connection ensures smooth signal transmission, while BT wireless connection brings convenience ?Easy to Use: Each button is clearly marked to indicate specific functions. ?Visual indicators display the working status. ?The adjustment knob meets tuning requirements Specifications: ?Product Model: K300 PRO ?Power Consumption: 230mA ?Battery Capacity: 1200mAh ?Rated Input: DC5V/2A ?Signal-to-Noise Ratio: 106dB ?Output Power: 600mW ?Total Power Consumption: 5W ?Rated Input: 5V/2A ?Recording: 16bit/48KHz, Signal-to-Noise Ratio 90dB ?Playback: 16bit/48KHz, Signal-to-Noise Ratio 100dB ?Distortion: 0.1% (Recording), 0.005% (Playback) Package included: ?1 x Sound Card ?2 x Audio Cable ?1 x Charging Cable ?1 x English User Manual