Silvercrest STSK 2 D4 - Page 16

16 GB/IE/NI
Wireless charging power 2.5 W
Wireless charging
distance to the Qi
charger ≤ 5 mm
Frequency band 112.18‒146.15 kHz
Transmitted maximum
radio frequency power
(H-field)
–13.9 dBµA/m at
10 m distance
Rechargeable battery Li-ion polymer, 3.7 V,
550 mAh, 2.0 Wh
Charging capacity up to 5 complete
charge cycles for
fully discharged
headphones
Charging time of the
charging/storage boxes’
built-in battery
approx. 3 hours
(complete charging
cycle)