YD-V3 Headset               Specifications:   Features:                   - Bluetooth® Specification: Version 2.0 - Bluetooth® 2.0 Technology - Profiles Supported: HSP, HFP   - Over-ear and in-ear headset     - Frequency Range: 2.4 GHz ~ 2.4835 GHz Spectrum   - An easy hands-free communication solution     - Operating Range: 33 Feet (10 meters)   - VOIP compatible     - Battery: 3.7V DC, 70mAH Li-Polymer Battery   - Compact and lightweight     - Talk Time: 4 Hours       - Standby Time: 140 Hours           - Charging Time: 3 Hours           - Dimensions: 35mm x 15mm x 10mm - Weight: 7.0 grams                                                                                                                               The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by WINPLUS is under license. Other trademarks and trade names are those of their respective owners.