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To charge WPC, just place Sonos Roam on the smooth, magnetized
side of the wireless
charger..The
wireless charger
other Qi-compliant power receiver. When When the Qi-compliant
power receiver is placed on the WPC , the charge will start to
work. Do not place metallic or magnetic foreign objects between
the wireless charger and the power receiver, as this could cause
heating of the foreign object or cause the device not to charge
properly. Examples of these objects include coins, jewelry, and
credit cards.
The BLE radio shall not transmit any packets when no device is
receiving power from the wireless charger. The BLE radio shall
begin transmitting advertising packets within 1 second of a device
placed on the wireless charger. The BLE radio shall stop
transmitting 60 seconds +/- 1 seconds after a device is placed
on the wireless charger. The BLE radio shall transmit
advertising packets at a frequency of 2 Hz.
How to verifyBLE:
Record advertising packets using BLE diagnostic tools starting
with no device on the wireless charger, then continue recording
for 90 seconds after placing a Qi receiver on the Wireless Charger
Frequency range (MHz)
H-Field Strength
WPC 112-148kHz
Frequency range (MHz)
Max. Transmit Power
BLE 2402-2480MHz
-0.08 dBm/0.00098 mW
1
may charge
-10.70dBuA/m
(dBm/mW)
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