KEF Mu3 User Manual

5
Get Started
Pair earphones with your Bluetooth device
1. Open the lid
  
LED will change to solid white
 
 
Clear pairing list from earbuds and connect new device.
1. Place the earphones back into charging case
 
alternately
   
LED will change to solid white
 
 
The earphones can be used in two modes:
 
 
Mono mode)

KEF Mu3 Specifications

Audio Specifications

speaker drivers	8.2 mm
frequency range	20 - 20000 Hz
sensitivity	104 dB/1mW at 1 KHz
impedance	16 Ω
max power output	5 mW

Bluetooth Specifications

bluetooth version	5.0
codec	SBC, AAC
bluetooth power	≤13 dBm
bluetooth range	10 m
bluetooth frequency	2.402 GHz - 2.48 GHz

Battery

li-ion rechargeable battery	55 mAh (earbud), 500 mAh (charging case)
battery play time (earbud)	9 hrs (BT + ANC on)
battery play time (charging case)	15 hrs
fast charging for 5 mins	1 hr battery play time

Operating Environment

operating temperature	-10°C to 45°C
power input	DC 5 V 600 mA

Weight and Dimensions

dimension (earbud)	24.5 x 17.5 x 26.3 mm
dimension (charging case)	33.5 x 62 x 52 mm
weight (earbud)	5.8 g
weight (charging case)	46.8 g