Product Parameters:
1. Product Name: mini portable speaker
2. Model: MX-388
3. Color: black, white, orange, pink, green, blue
4. Speaker Type: portable
5. Playback Function: MP3
6. Material: plastic
7. Waterproof: no
8. Cabinet Material: plastic
9. Speaker Structure: sealed
10. Battery: Li-ion battery
11. Battery Capacity: 80mAh
12. Normal Charging Time: 1.5 hours
13. Maximum Charge Duration: 2 hours
14. Interface Type: USB 2.0
15. Support Memory Card: yes
16. Functions: TF, SD, USB
17. Special Feature: mini, portable, handfree Mic + TF card, SD card
18. Compatibe with U disk TF / Micro SD card, MP3
19. Certification: CE / Rohs / FCC
20. Net Weight: about 18 g
21. Product Size (L x W x H): about 35 * 35 * 27 mm / 1.38 * 1.38 * 1.06 inch

Note:
1. Each time MP3 is connected to the computer USB port or gets charged, it cannot exceed 2 hours, or the overcharge easily lead to MP3 built-in lithium battery's failure and damage.
2. There is no need to worry the state of MP3 or charger indicator light when getting charged, because it gets fully charged after 1.5 hours and the state will not change after full charge,

Packing List:
1 * MP3 Player
1 * Wired Headphone
1 * USB Charging Cable
1 * Crystal Box