C20 Plus Multifunctional Karaoke Bluetooth Speaker With Microphone (Green)1. Support TF card playback, plug and play. 2. Compatible with mobile phones, tablets, and computers, and the Bluetooth connection is stable. 3. Built in large capacity battery, 2 4 hours of battery life. 4. The chip has a built in radio module, which can receive FM. 5. Parameters: Bluetooth version: 5. 0 Receiving distance: greater than or equal to 10m Speaker specification: 52mm, 4 ohms, 5W Speaker battery capacity: 1000mAh Microphone battery

Rated input frequency: 50Hz-60Hz

Color: black

Comfortable fabric

Weight 176g

83inch * 15

Carton Size 52cm * 38cm * 37cm / 20

ThinkPad X1 Carbon

Dimensions: 33x11x29 cm

7680x4320P resolution

Function: USB interface

the falsehood rate is less than 0

40HQ: 680 cartons * 24 pcs = 16320 pcs