Description: 【Product Size】: The double microphone singing entertainment sound card measures 15cmx11.5cmx4.8cm, small and portable. 【Durability】: Microphone sound card made of ABS material to ensure long term use. 【Advanced Features】: The F10 sound card provides intelligent noise reduction for clear audio output, plug and play functionality for easy use, supports OTG lossless , and automatically adjusts the volume during speech or silence. 【Vocal Elimination】: The vocal elimination function removes up to 99% of the original vocals from the song, leaving only the accompaniment 【Compatible】: Sound card audio mixer compatible for mobile phones and computers, wireless connection for delay audio playback. Specification: Power input: DC 5V/1A Battery: 3.7V/1800mAh (can be used for about 8 hours) Charging time: about 3H Charging interface: TYPE C interface Power indicator: Power on: white light; Charging: red light; Low power state: prompt tone 2 minutes/time Input and output ports: Condenser mic input 1 channel (3.5 ports) Headphone output 1 channel (3.5 ports) Headphone output 1 channel (6.35 ports) Live broadcast interface 1 channel (3.5 ports) Instrument input 1 channel (6.35 ports) 48V input 2 channels (XLR female) Dynamic input 2 channels (XLR female) OTG interface 1 channel (TYPE C) Analog audio output: LT/RT, stereo Dynamic range 1kHz: ≥105dB Crosstalk :≥-106dB to noise ratio:≥85dB Output level (Vrm): Vrm (1.0~2.0V 10kR) Frequency response: 5MHz (