?This Product uses the latest Bluetooth V4.0/4.1 technology£¬ backward compatible with V3.0£¬ V2.1£¬ V2.0£¬ V1.2£¬ V1.1£¬ the internal integration of 80MHz RISC MCU and 80MIPS Kalimba DSP£¬ and Bluetooth 3.0 was as high support to 64MHz RISC MCU and 64MIPS Kalimba DSP. <br><br><strong>Features:</strong> <br>In-ear type with comfortable earplug. <br>Support multi-point connection£¬ calls voice newspaper£¬ voice reminders. <br>Enjoy stereo music wirelessly from Bluetooth A2DP devices. <br>Micro USB connector charging via AC charger or computer USB port. <br>Suitable for all Bluetooth enabled device£¬ Samsung£¬ Motorola£¬ Nokia£¬ HTC£¬ Sony mobile phones£¬ iPhone£¬ ipad£¬ tablet PC. <br><br><strong>Specifications:</strong> <br>Type: Wireless Bluetooth Earphone <br>Material: Plastic <br>Color: Black£¬ White (Optional) <br>Bluetooth Version: Bluetooth 4.0 <br>Transmission range: 8-10 meter <br>Standby Time: 100 Hours <br>Talking Time: up to 6 hours <br>Music Playing Time: up to 6 hours <br>Compatible with: for all Bluetooth enabled device£¬ Samsung£¬ Motorola£¬ Nokia£¬ HTC£¬ Sony mobile phones£¬ iPhone£¬ ipad£¬ tablet PC£¬ etc??? <br>Item Size: Approx. 7 * 2 * 2.5cm / 2.8 * 0.8 * 1in <br>Item Weight: Approx. 7g / 0.3oz <br>Package Size: Approx. Approx. 7.5 * 9.5 * 2.5cm / 3 * 3.7 * 1in <br>Package weight: Approx. 20g / 0.7oz <br><br><strong>Package List:</strong> <br>1 * Wireless Bluetooth Earphone <br>2 * Clip <br>1 * USB Cable <br>1 * User Manual