Description:
With hole design, this speaker built-in battery is so small and lightweight that you can take it anywhere anytime. Equipped with a 3.5mm audio cable at the bottom, you can listen to music after connection with mobile phone, MP3, MP4, computer and other devices with a 3.5mm audio jack.

Features:
1. Small and lightweight, hole design, easy to carry
2. Low voltage, low power consumption, power amplifier IC, pure sound quality, low distortion.
3. Suitable for iPod, MP3, MP4, MP5, mobile phones, computers and other devices with a 3.5mm audio jack.
4. Comes with an audio cable at the bottom of the speaker. Equipped with a USB charging cable.
5. Built-in 180mah battery, no external power supply needed, provides one and half hours of playing time at maximum volume, or about 3 hours at 50% volume.
6. Unique design -- Retractable speaker.

Specifications:
Material: ABS
Size: Approx. 52 * 52 * 38mm / 2.0 * 2.0 * 1.5in
Impedance: 4 (Ω)
Distortion: 0.5 (%)
Frequency response range: 200-20K (Hz)
Sensitivity SNR: ≥ 89db (dB)
Speaker Unit size: 3.5 (mm)
Carrying power: 2.2
Battery capacity: 180mah
Color: Black, White (Optional)
Package weight: 78g

Package List:
1 x Speaker
1 x USB Charging Cable