Highlights Wireless V4.1 Neckband EarphonesSpecification Dimensions:5.00 in * 6.57 in * 1.38 in Weight:0.2100 lb Available Ship to:United StatesDetails *Features*: *LED Night Light*:The neckband will be illuminated at night and offer three modes(fast flash,slow flash and constant light modes) to choose via the light On/Off button,which ensure safety when sport at night. Crystal Clear Sound Effect:Adopts advanced CSR4.1+EDR technology to ensure transmitting strong signal and offer high-quality sound effect. Besides,echo cancellation technology ensures high definition sound reproduction. Ergonomic and Skin-Friendly Design:The two ear hooks adopts skin-friendly soft silicone materials and has ergonomic shape with frosted surface coated to ensure secure and comfortable wearing experience. Also the sweatproof materials keeps the earphone more durable. Ideal for Running:Its lightweight and sweat-proof design make it ideal for running,biking,hiking,yoga,exercises,travelling,etc. Ultra-Long Music Playtime:Embedded 120mAH lithium-ion battery can last up to 6-hour music playtime and 8-hour talk time in 3-hour full charge. Also,it will display battery level on iOS devices.   *Specifications*: Wireless Version: CSRV4.1 Transmitting Power: Class 2 Protocols Supported: HSP, HFP, A2DP, AVRCP Driver Unit: φ10mm Impedance: 32ohm±15% Talk Time: (LED Off): Up to 8 hours; (LED On): Up to 5 hours Play Time: (LED Off): Up to 6- hours; (LED On): Up to 4 hours Standby: (LED Off): Up to 90 hours; (LED On): Up to 13 hours Charge Time: = 3 hours Operation Range: =10M Battery: built-in 120mAh lithium battery Weight: 0.76oz Available Colors: green, blue, red, orange   *Package Lists*: 1 × Wireless LED Illuminated Sport Headset 1 × Pair of Small Eartips 1 × Pair of Large Eartips 1 × USB Charging Cable 1 × User Manual