Wireless Bluetooth Speaker Top-Quality Nfc Wireless Bluetooth Speaker F71

Top-quality NFC Wireless Bluetooth Speaker F71

The is for a high-quality wireless Bluetooth speaker, it has the following outstanding features:
*Automatic Bluetooth Pairing Connection: Adopt NFC short-range wireless communications technology, as long as it near NCF sensor area, the device will automatically turn on Bluetooth and connect, automatic re-connection even only 0.001 seconds, operation more efficient and easy.
*Long-distance Transmission: With buit an external antenna technology, it can connect up to 40 meters, while you know ordinary Bluetooth audio connection is only about 10 meters away.
*The industry's first dual-microphone Super Noise Reduction: Dual microphone, stand-cavity design, effectively reducing ambient noise interference qualitative dialogue to improve the clarity of calls
*Long distance calls: Nearly one meter and above Handsfree distance(depending on the calling environment), while ordinary products less than 0.5 meters. Just place on the desktop, you can communicate.
*Bluetooth: Adopt Bluetooth chip CSR4.0 version as a solution, fully compatible to connection distance, frequency response, dynamic range, etc., better performance compared to other chip solution while less power consume and longer battery life.
*Hands-free calling features
*Audio Player, Bluetooth music control function (selections, volume)
*Built-in lithium battery, Micro USD interface
*3.5mm stereo audio input interface, support iPhone, iPad, Samsung, and other Bluetooth-enabled devices audio output

Process Characteristics:
*Four-layer PCB board: Havs separate layer of "land" and one "main power", for the single-board and double board, four board circuit stability, immunity to electromagnetic interference and noise ratio has quality leap.
*PCB Immersion Gold Process: Structure more closely, no oxidation, reduction circuit board surface resistance, reduce signal loss
*Bluetooth module and IC electromagnetic screen, reduce electromagnetic interference, enhance the signal to noise ratio
*External Bluetooth antenna, Bluetooth transmission distance increases, more stable connection
In addition, even in place that you can not see (not the surface), such as circuit boards, shield, battery, we use professional custom parts.

Specifications:
Output power: 3W
Loud speaker function: Support
Adjustment method: Button
Bluetooth version: V3.0
Channel: 2.0 channel
Audio formats: MP3, WMA, WAV, APE, FLC
Battery capacity: 800mA
Weight: 0.25 kg
Product size: 110 * 110 * 115

Product Parameters:
Rated impedance: 4Ω
Rated power: 3W
Rated voltage: DC 5V
RMS: 3.0W
Frequency range: 60Hz-15kHz
Power: USB DC 5V or built-in lithium battery
Weight: 282g
Unit dimensions: 2 inches
Input: BlueTooth, 3.5mm stereo
SNR: ≥ 95db
Distortion: ≤ 2%
Dimensions: 88*73*73mm