silicone shell mini shockproof bluetooth speaker

Reference colors: black, silver, blue, green, pink and orange 
Size: 79*79*66mm 
Weight: 178g 
Materials: 100% silicone and ABS 
RoHS Directive-compliant 
Signal-to-noise ratio: ≥85dB 
Distortion ratio: ≤0.5% 
Frequency response: 100Hz-20kHz 
Output power: 3.0W (RMS) 
Battery: 3.7V/500mA 
Speaker specification: 40mm, 3W/4Ω 
Advanced Bluetooth 3.0 (about 10m range) 
Can play/pause and volume-/+ 
3.5mm line-in ports and TF cards are available 
Built-in Li-ion polymer battery: 500mAh 
Playing time: up to 4-6 hours 
LED indicator for charging power 
General micro USB port 
Wireless Bluetooth transmission for mobile phone, laptop and iPad 
Handsfree calling and telephone conferences 
One multifunction key for picking up or ringing off or rejecting or exiting calling and last number redial 
Portable stylish design for easy to carry
Quantity Per Month: 10000pcs
Delivery Way - Date Of Delivery: 20days