Sennheiser RS165 Instruction Manual page 11

Product overview
LED indicators on the transmitter
1
2
3
1 Charge status LED
After taking the headphones from the holder of the transmitter, the charge
status LED indicates the approximate operating time of the headphones:
Charge status LED
Meaning
The transmitter is not charging.
The rechargeable batteries are being
charged.
The rechargeable batteries are fully
charged.
A charging/battery fault has been detected.
Operating time Battery capacity
up to 4 hours 0 to 25%
approx. 4 to 9 hours 25 to 50%
approx. 9 to 14 hours 50 to 75%
approx. 14 to 18 hours 75 to 100%
RS 165 | 9