?This Fineblue LV-6 ?Sports Bluetooth earphone is very suitable for running£¬ climbing mountains£¬jogging etc. It is sweatproof so that sweat won't get into the headphone even if you are sweaty.Its ring neck hanging type£¬reducing the pressure and pull force on the ears and head of traditional headphones.The ear cap is extremely soft£¬very comfortable to wear. And the length is reduced by 4 cm£¬ it is not wrapping around the neck£¬ which save you from the trouble of wire entanglement while exercising. It's a really good buying. <br> <br> <strong>Features:</strong> <br> Bluetooth V4.0 + EDR standard£¬ high fidelity sound quality.? <br> With microphone£¬ you can operate on it to answer/reject phone calls£¬ or listen music anytime and anywhere. <br> Multi-point technology£¬ you can connect two cellphones at the same time£¬ and it supports switch between calls. <br> Compatible with Bluetooth enabled devices£¬ such as for iPhone£¬ iPad£¬ HTC£¬ Lenovo£¬ Samsung£¬ Tablet PC£¬ and etc. <br> Lightweight design for comfortable fit. <br> Build-in rechargeable li-battery£¬ charging via USB cable about 2 hours. <br> <br> <strong>Specifications:</strong> <br> Bluetooth: V4.0 <br> Chip: CSR <br> Operating distance: 10m <br> Battery capacity: 60mAh <br> Music play: 4 hours <br> Talk time: 4 hours <br> Standby time: 100 hours <br> Charging time: £¼ 1 hours <br> Skip song: Support <br> Voice prompt: Support <br> Color: Black£¬ White <br> Frequency range: 2402 ~ 2480 MHZ <br> Sensitivity: -80 dbm <br> Frequency response: 20 ~ 20 KHz <br> Signal to noise ratio: £¾ 80 dbm <br> Horn output power: 2 * 10 mv <br> Package size: 18 * 10 * 8 cm / 7.1 * 4 * 3.1 in <br> Package weight: 118 g / 4.2 oz <br> <br> <strong>Package List:</strong> <br> 1 * Earphone <br> 2 * Earmuff <br> 1 * USB Charging Cable <br> 1 * English User Manual