Remax RB-T21 Bluetooth Wireless Mini Single Side Earphone - Black

• Classic and mini style, comfortable experience

• Bluetooth V4.1, lower power consumption and fastest pairing

• With a microphone, you can answer calls handsfree while driving

• Independent cavity and high quality vibration film design, with 6mm speaker unit, give you a unique music experience

• 360-degree noise filtering design to eliminate background noise and enhance call clarity

• Built-in 50mAh battery, up to 100 hours of standby time

• Connect with two devices at the same time

• Ergonomic design, comfortable and steady

• Lightweight and portable, easily use it while traveling and driving

• Transmission range: ≤10m

• Rated power: 5mW

• Frenquency response: 50Hz-10KHz

• Mic sensitivity: -42±3dB

• Output sensitivity: 99±3dB 

• Speaker unit: 6mm 16Ω 

• Standby time: 100h 

• Charging time: about 1.5h

• Weight: 3.8g

the support function

answer / stop the phone,

MP3 player, last number redial, music switch,

IOS battery display, multi-point connection

switch between Chinese and English.