Different model for choose:

Model: IMS-858

Feature:
- 100% Wireless
- Microphone lets you sing over your favorite songs
- Built-In Bluetooth Speaker can connect to any Bluetooth enabled source ( Smartphone, iPhone, iPad, Tablet, Car, PC, and more )
- Professional Tuning Switches (Echo, Volume )
-Support TF card/USB disk/Bluetooth/AUX music play
- Micro USB Port for charging and for auxiliary connection

Specifications:
Material: Aluminum Alloy
Pickup: Capacitor
Output Wattage: 5W 
Frequency Response Range: 100Hz ~ 10KHz
Maximum Sound Pressure Level >115dB 1KHz THD<1%
Reverberation: Echo Sound
Bluetooth Version: Bluetooth 4.0
Battery Capacity: 1200/1800/2200mAh for choose
Battery Life: 5-8 Hours
Charging: DC 5V / 1A
Charging Time: 2-3 Hours
Color: black, gold, rose gold

Included:
1X Bluetooth Microphone
1X Instruction Manual
1X Micro USB Cable
1X Recording Audio Cable 

2 Packages for choose:
Gift box or PU bag