JAZZ-BT31 comes with CSR BT 4.1 chipset which provides both high quality signal and low power consumption. It supports AptX function that provides lossless & excellent sound quality. Its built-in high-density 100mAh lithium battery provides 5 hours playback time. Features: - Small and light weighted sound control to reduce sloshing in motion - Ergonomic ear bud design easily fits in your ear - Suitable for sports - Magnetic ear bud design, avoid shaking when idle - IPX6 water resistance certified that is suitable for more situations - Support CVC echo cancellation & dropout function Specifications: - Speaker Dimension: 6mm NdFeB speaker x 2 - Sensitivity: 88 +/- 3dB S.P.L. at 1K Hz 1mW - Frequency Response: 20 ~ 20000 Hz - Impedance: 16 ohm - Microphone sensitivity: -42dB +/- 3dB - Frequency Response: 20 ~ 20000 Hz - Directivity: Omnidirectional Condenser Microphone - Impedance: 2.2 K ohm (Max) - Operation Voltage: 5V - Operation Current: 100mA - BT Version: 4.1 - Working Distance: +/- 10M (Open space) - Music Time: 5hrs (at 60%Volume) - Talking Time: 6hrs - Standby Time: 250hrs - Battery Capacity: 3.7V 100mAh - Charging Time: 2hrs Buttons function: Short Press: Volume up, Call answering/Play/Pause, Volume down

Press: Previous song , ON / OFF, Next song - Compatible with most devices with Bluetooth technology (e.g. iOS, Android or Windows smartphones, PC, Laptop, MacBook, etc.) - Cable Length: 53.3 +/- 3 cm - Colour: Black - Product code: JAZZ-BT31 What's in the box 1 x Earphone 1 x Micro-USB charging cable 2 x ear plug silicone sets 1 x User manual