The Remax RB-S6 Neackband Bluetooth Earphone has 2.4GHz-2.48GHz frequency response with 105dB±3dB sensitivity.This Neackband Bluetooth Earphone built-in 160mAh rechargeable battery, V4.1 Version Bluetooth, 10mm speaker diameter with 50-10000Hz transmission range. In this earphone Working Voltage is 3.7V, Output Power is 3.5mW and used 160mAh Battery Capacity.This earphone bluetooth enabled devices features are HD Microphone, Smart Noise Reduction, Multiple Connections, Intelligent Voice Prompts, Smart Wire Control,etc.

• Model : RB-S6
• Style: Bluetooth Earphone
• Bluetooth Version: V4.1
• Sensitivity: 105 +- 3dB
• Frequency Range: 50 – 10KHz
• Charging Time: Around 2 Hours
• Battery: 160mAh (Rechargeable Lithium Polymer Battery).