La description

Feature:
• Original US Broadcom Bluetooth Chipset, stable transmitting and high Compatibility
• Display battery usage information after pairing with iPhone and iPad
• Dual-coil full range *5mm driver to ensure loud , clear and rich audio experience
• High-end Zinc metal with electroplating and UV finish, total weight up to **6g
• Build-in noise cancellation digital mic to ensure clear phone call
• Quality digital amplifier to ensure no break and distortion under low battery voltage
• Build-in **0mAh PLB(not simple PIB) battery with soft pack to ensure a safe transportation and worry free from explosion 
• A class battery cell giving up to 6 hours of constant playback and **0 times charging lifespan
• Line in port and cable for use with non Bluetooth devices 
• More function: Intelligent voice prompt; Auto sleep for energy saving 
Specifications:
• Channel: 1.0
• Bluetooth module: Broadcom
• Bluetooth Version: V3.0
• Mic: Yes 
• Battery: Build-in **0mA Li- battery 
• Interface: USB port、AUX in Jack
• Transmission distance: about *0 meters 
• Frequency response: *0Hz**0KHz
• S/N: ≥*0db  Sensitivity: *0db
• Speaker drivers: ∮*5mm，2Ω5W
• Power: 5W    
• Charge voltage: DC4.2V~ 5V                                                         • Charge time: 2~3 hours   
• Stand-by Time：*0 Hours                                                             • Play time: about 3.5 hours (Max Volume)  
• NFC: optional(add USD0.*5)                                                         • Size: L*9.1*W*6.6*H*5.8mm
• Accessory: USB power line 
• Distortion: ≤0.3%
• Working current: ≤**0mA
• Unite weight: **6g