Features:-Up to 15 hours of talk time -10 hours of listening-Unique design:the Tone has an around-the-neck wearing style-The magnetic ear phones snap into place in the stylish-Music controls right on the neck strap-Water resistant design-Weight:35g (approx)-Color: black-green / black-red / black-purple / white-blue Specification: -Bluetooth Version: 4.0 + EDR -Audio/Video Remote Control -Wearing style: Neckband Ear -Bluetooth Version: CSR 4.0 -Support model: HSP / HFP A2DP/AVRCP -Multi-point connections: one for two Bluetooth distance: 10 meters -Talk Time: UP to 10hours -Music Time: UP to 8 hours -Standby Time: UP to 15 Days -Charging time: less than 2 hours -Speaker Unit: 10mm high fidelity -Microphone: Intelligent Noise Reduction -Neck: the image memory metal -Battery capacity: 3.7/195mah lithium polymer battery buyer note: (retail box is not include、 if need、 plz contact us for negotiate extra cost before purchase.)Package include:1 * Universal Wireless Bluetooth Sport Stereo Headset 1 * USB Cable1 * User Manual4 * Extra earplug