Features:
- Sound card function: Yes
- Bluetooth speaker function: Yes
- Card reading: TF card
- Built-in battery play: Yes
- Play while charging: Yes
- Low power indication: Yes (prompt tone)
- Support audio format: MP3 WAV WMA FLAC APE
- Sound regulation: high, medium and low pitch regulation; Accompaniment, reverberation, recording adjustment; Microphone volume adjustment; Speaker volume adjustment
- Light control: diaphragm with self-flashing seven-color light; The left and right potentiometers always turn on the tricolor light; The spectrum lamp under the potentiometer jumps with the size of the music
- Audio switch: Yes (no sound after the audio is turned off, and the sound card function can be used normally)
- Function keys: 12 keys
- Sound effect key: 6 keys
- Special effect key: 12 keys
- Bluetooth switch: supported
- Bluetooth playback operation: pause, previous song, next song
Power specification:
- Power supply (adapter): DC 5V/3A
- Battery: Built-in 7.4V/4000mAh (the battery can be used for 3 to 3.5 hours when the power amplifier is on)
- Power indicator (LED: power on: white light; charging: red light; low power state: prompt tone for 2 minutes/time
- Charging time:
- Fast charging (power off) 4.5-5 hours
- Slow charging (charging while playing, power amplifier on moderately) 9-12 hours
Horn specification:
- Model: full-frequency horn 4 Ω 5W
- Size: 52x52x32mm
- Rated impedance: 4 Ω ± 15%
- Rated power: 5W
- Frequency range: F0-20KHZ
- Characteristic sensitivity: 84dB ± 2dB
- Resonance frequency: 400HZ ± 20%
- Harmonic distortion: ≤ 5%
Audio performance specification:
- Analog audio output: LT/RT, stereo
- Dynamic range 1kHz: ≥ 80dB
- Crosstalk: ≥ 70dB
- Signal-to-noise ratio: ≥ 85dB
- Output level (Vrms): Vrms (1.0~2.0V 10kR)
- Headphone output power: 5 mW x2CH
- Horn output power (rated value): 5W x2CH
- Horn output power (peak to peak): 10W x2CH
- Frequency response: 5MHz (<- 3dB)
Package Included:
- 1 x sound card audio
NO Retail box,Packed safely in Bubble bag.