Portable Speaker with SD Card Slot with USB Port

Model Number: RLBT-29#8731 Brand Name: OEM/ODM Key Specifications/Special Features: Private tooling productionSize: 260 x 200 x H300Color: navy blue and sky blue1. Wireless Bluetooth input, compatible with iPhone, iPad and all mobiles with Bluetooth device2. Handsfree function to answer the phone3. Play/pause, Vol-/previous song, Vol+/next song function4. Line in5. Play/pause6. With TF slot, play MP3 musicBluetooth version: Jieli V2.1
Speakers: 1X10W
Max Power output: 20W
Material: ABS + metal
SNR: ≥75dB
Distortion: ≤0.5%
Frequency range: 50Hz-20kHz
Receive sensitivity: better than +82dBm
Remote control
Mic in for karaoke
LED display/LED flash light
Slot: USB/DC port/TF card/aux-in/ERA-mic
Range: 10 meters
Data transmission: up to 3Mbps
Charging port: DC port
Charging voltage: 9VDC
Working voltage: 3.7-4.2VDC
Battery: 2200mAh (built-in Li-ion rechargeable)

Option:
1. Materials: ABS plastic/rubber finished
2. Microphone, upcost USD 1.5/piece
3. Colors: black, red, sky blue and navy blue