This speakers adopts latest V4.2 technology which can pair with all types of devices with functions in seconds. Mini size design allows you to take outside for easy carry and storage. A perfect choice for outdoor hiking, climbing and camping. The speaker transmits clear and crisp super bass sound, it's an ideal outdoor and indoor music player for you and your family, friends to enjoy high quality music anytime Features- V4.2 technology, our speaker can connect with your smart phones, tablets, or any other device in 10 metres in open air. Speaker will automatically reconnect to the last device used.- Sensitive touch control enables easy operation to adjust the music playing mode, volume and more.- Enjoy a high definition stereo sound whether you're at home or party, walking, camping, hiking, biking and more activities possible.- Supports TF card and devices. in music playing. You can enjoy your favorite songs freely without connection.- 2.1 stereo speaker, delivers full mid frequency, clearly high frequency and amazing low frequency sound.Specifications- Color: As shown.- Material: Plastic.- Size: Approx. 36 x 15.8 x 15 cm.- Version: V4.2.- Support: TF card(up to 32G, not included), USB.- Play format: MP3, WMA- Frequency range: 75HZ-18KHZ.- Speaker power: 5W.- Battery: 2000 mAh lithium battery- Input voltage: DC5V- Wireless Range: Up to 33 feet (10 meters in open air)Package:1 x Jewelers Rubber Hammer1 x Ring Mandrel Sizer 27 x Circle Models