It's a WSTER- 1661 rechargeable multi media portable Bluetooth speaker . This speaker can use both AC and DC power source. It has a digital FM tuner. It has an handle which makes it easy to carry. The speaker can receive sound from any Bluetooth source. It has a well balanced output which helps it giving out a great sound. This speaker can be recharged due to it's inbuilt lithium battery. The speaker also has an SD card slot and a USB port. Stay classy with the WS-1661 Bluetooth wireless unique design and style. Extra comfortable and easy  to carry. Suitable for travel & hiking and indoor audio streams. Powerful speaker gives it that extra sound boost and distinct bass.Performance gives excellent audio output when you are enjoying your movies/music in your own comfort Compatible with PC, Laptop, MP3/4 Player, TF/MicroSD, USB flash drive and any audio device that is Bluetooth compatible or has a 3.5mm stereo output jack

FEATURES

1. Built in noise and echo cancelling speaker phone
2. Compact design
3. Powerful audio decoding
4. Bluetooth 4.0 for all devices
5. Supports Phone calls and Recording
6. Compatible : TF card / USB
7. Power Source : rechargeable

Specifications

Key Features

1. Model-1661
2. Brand-Wster
3. Power Source :Battery
4. Number of Loud speakers-2
5. Communication: AUX, Bluetooth, USB
6. Cabinet Material: Metal.
7. Channels:2.0
8. Special Feature: Wireless, PORTABLE, MINI
9. Product name: Wireless Bluetooth speaker
10. Size:33*18*11.5cm
11. Color-Black
12. Play time:3-4hours
13. Output power:7W*2
14. Material: ABS
15. Function: Bluetooth/TF Card/USB/FM/ Selfie

What’s in the box

1. Bluetooth speaker
2. AUX cable
3. USB charger cable
4. User manual.

Specifications

1. SKU: WS511EA17FRBGNAFAMZ
2. Product Line: Bluetooth Wireless Speaker
3. Model: WS-1661
4. Size (L x W x H cm): 33*18*11.5cm
5. Weight (kg): 1.62
6. Color: Black
7. Main Material: ABS