[All-in-One BT Sound Card Speaker]The bt sound card speaker is a professional device designed for live singing and broadcasting on mobile phones and computers. It features a 20W speaker, DSP chip processing, and independent adjustment of high, mid, and low tones, providing a full-range stereo sound reproduction.
[Superior Sound Quality]With 12 kinds of electronic sounds, 8 warm-up sound effect and more, this speaker allows you to adjust the treble, bass, and echo independently, creating an excellent karaoke effect and pleasant ear enjoyment for your party, music listening, and singing.
[Long Battery Life]Built-in with a large-capacity lithium battery, this karaoke speaker ensures long-lasting battery life, making it an ideal choice for both indoor and outdoor karaoke sessions. 
[Multiple Connection Methods]This sound card speaker supports Bluetooth, AUX, OTG, and TF card connections, offering you various ways to enjoy your music. It also features a power display and headphone synchronous monitoring for your convenience. 
[Designed for Live Streaming]Perfect for live streaming, podcast recording, voice-overs, and content creation. It is compatible with TV, computer, Android mobile phone, projector and more, easily for mic studio, home studio recording, DJ mixer, music recording, guitar, condenser mic, podcasting, etc.
Specification: 
Color: Black, White (Optional)
Product Size: 269x147x62.8mm
BT version: 5.0
Wireless microphone/BT receiving distance: 10M
Battery: polymer lithium battery
Battery capacity: 4000mah
Charging constant current: 1A
Fully charged voltage: 4.1V
Boot standby current: 750MA (lights on), 350MA (lights off)
Low voltage shutdown current: 3.3V
Shutdown standby current: 24UA-25UA
Headphone power: 32R, 50mW
Speaker/audio power: 4R, 5W
Distortion: <1%
Maximum power*2: 16W
Audio playing time: 4-5 hours
Frequency response: 20hz-20khz
SNR: 65
Microphone principle: condenser microphone
Impedance: 4R
Input support: 3.5 audio, Type-C input, TF card, condenser microphone, dynamic coil microphone
Power adapter: Type-C
Charging voltage/current: DC5V/2A
1KHZ/ODB power amplifier output: 4.55V
1KHZ/ODB amp output: 1.26V
Audio algorithm support: decoding: MP2, MP3, WMA, APE.FLAC, AAC, MP4, M4A, WAV (IMA-ADPCM & PCM), AIF, AIFC
Encoding: MP2/MP3, IMA-ADPCM
Package Size:  29x15x14cm/8.2x5.9x5.5in
Package Weight:  1577g/55.6oz