- Good sound quality 

- Work with Bluetooth enable-devices, Smart Phones, Tablet and more.

- Accessories: USB to 3.5mm plug charging cable + 3.5mm audio cable.

- Soft touhing with rubber finished

- OEM, ODM

- Bluetooth version:  BK3.0

- Mic be hands free calling

Wirless Working Distance: up to 15m

Charge time: 2.0 hours

Play time: 3.0-4.0hours in medium volume

Speakaer Diameter: 40mm

Item Weight: 0.45kg (packaging with gift box like the pic)

Dimensions: 21*7.5*7.5cm

Battery Type: Lithium ion Batteries required

Battery Capacity: 600 mAh

Impedance: 4 Ohms

Frequence Response: 120~20,000 Hz

Signa to Noise Ratio: ≥90dB

Total Harmonic Distortion: ≤0.5%

Output: 3.7V

Input: 5.0V