Specifications:

• Model: T12
• Bluetooth Version: V4.1
• Operation Range: Up to 10 meters (no obstacle)
• Supports HSP, HFP, AVRCP protocol
• Frequency Response: 20Hz-20KHz
• Sensitivity: 105±3dB
• Impedance: 32Ω
• Charging Box: 3.7V 280mAh rechargeable Li-polymer battery
• Battery capacity: 3.7V 40mAh rechargeable Li-polymer battery for single headphone
• Working Time: about 2 hours (The Music Volume will affect the time)
• Standby Time: about 120 hours
• Charge Port: Micro USB
• Color: Black with Silver
• Headphone Size: 2.3 * 2.3 * 1.8cm / 0.90 * 0.90 * 0.70in
• Headphone Weight: 4.6g / 0.15oz

 Package List:

• 1 * Headsets with Charging Box   
• 1 * USB Cable
• 2 * Pairs of Earcap
• 1 * English User Manual

Features:

• TWS Bluetooth Design: Wireless dual ear stereo design, left and right ear channel separation. You can use the headset solely, or used them in pairs (stereo mode).
• Lightweight & Invisible: 4.6g lightweight, mini size and 3 sizes of earcaps provide you long time wearing comfort, and guarantees stability when walking, running and more.
• Built-in Microphone: High-sensitivity microphone reduces ambient noises and grasps the detail of voice, ideal for in-car calling or working use.  
• Charging Box: The headphones will be charged automatically in the 280mAh charging box and stop automatically after fully charged.
• Long Battery Life: 40mAh rechargeable battery in each headphones ensures 2 hours of working time. The charging box enables headset charging for about 3 times.