Attention Please, this link just Bluetooth Module, without earphones, please see clear.
1.KZ High Performance Bluetooth Module Upgrade Wire
2.CSR8645 Chip,Excellent Connection Stability, Support APTX Lossless Audio Transmission Technology
3.4.2+EDR Increase Rate,It's 3 times as many times as common Bluetooth,Let Bluetooth transmit faster, transmit more steadily, higher efficiency, and consume less power.
4.IPX5 Waterproof & Sweatproof,Waterproof, Anti-Sweat, Experience The Freedom Of Bluetooth.
7.Play 8 Hours In A Row ,Built-in 130mAh safety lithium battery, brings over 8 hours of wireless listening after full power, 100 hours long standby, bid farewell to frequent charging.
8.With industrial grade ceramic antenna, RF is more stable,Audio signal transmission gain, While reducing the antenna,Low noise 1/3, noise figure of the receiving circuit such as sound amplifier or mixer, make Bluetooth receive the sensitivity better.