Specification: 4.0 smart chip, efficient transmission speed. Compact, ultra light design stereo Bluetooth headset, portable and easy to carry. High-fidelity sound quality, wireless songs enjoy. voice report number, low power remind,connect/disconnect remind,boot off prompts. allows you to conveniently answer calls while driving. Supports two mobile phones simultaneously connected. Long battery life, fast charging. Support wechat, qq voice calls, movie, Bluetooth V4.0, superior compatibility. Compatible for almost all the mobile phones and tablet pc, etc. Instruction: 1. Please fully charge the headset before using. 2. Restart your phone. 3. Turn on the headset, please long press and hold MFB button for 5 or 6 seconds until the light starts flashing an alternating red-blue.(This is the key step.) 4.Then turn on Bluetooth on your phone,search and connected it with the ear piece. Item Name: Bluetooth Earphone Drive: 40mm Impedance: 32OHM Bluetooth version: Bluetooth V4.0 + EDR Power Level: CLASS II Output Power: 30mW Bluetooth Distance: 10 Meters Barrier Frequency Response: 20-20000 Hz Operating Voltage Range: 3.0V-4.2V Microphone Sensitivity: -42dB With A2DP / AVRCP high-quality stereo audio transmission and remote control protocol. Powerful noise noise cancellation circuit (active noise reduction). Wired and Bluetooth automatically switch to support audio input. Charging time is about 1 hour (power indicator charging). Talk Time: about 2-3 Hours Music Time: about 2-3 Hours Standby Time: about 3-4 Days Charging Power: DC5V Power Interface Compatible: for Android, for Apple, for Microsoft, for Symbian 99% of with Bluetooth cell phones(for iOS cell phone has power display) Size: 30mm x 15mm x 18mm/1.18" x 0.59" x 0.71" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bluetooth Earphone (Not 1 Pair) 1 x USB Cable
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