WiiM Bar

Acoustic system : 8-driver acoustic system with 4 passive radiators
Front mid-woofers : 0.12 × 4.33 × 2.05 inches ( 3 x 110 × 52 mm) mid-woofers
Front tweeters : 0.12 × 2.05 × 2.05 inches (3 x 52 × 52 mm) tweeters
Top height drivers : 0.08 × 2.05 × 2.05 inches (2 x 52 × 52 mm) full-range drivers
Passive radiators : 0.16 × 4.53 × 1.97 inches (4 x 115 × 50 mm) passive radiators, front × 2 and rear × 2
Max system power : 135 W
Native channel layout : 3.0.2
Height effects : Top-firing height channels

Supported audio formats : LPCM, Dolby Atmos/TrueHD/DD+, AC3, DTS, DTS:X
Dolby Atmos support : Yes, via supported content and compatible input setup
DTS:X support : Yes
HDMI home theater connection : HDMI eARC
Native configuration : 3.0.2 Dolby Atmos and DTS:X soundbar
Expandable configuration : Up to 5.1.2 with compatible WiiM surround and subwoofer devices
Surround expansion : Wireless surround support with compatible WiiM devices
Subwoofer expansion : Wi-Fi wireless subwoofer support with compatible WiiM devices (Google Cast, Roon Ready & LMS audio sources support coming in an upcoming update).

HDMI : HDMI eARC
Optical : Optical In
Analog input : Line In
Ethernet : 10/100 Mbps Ethernet
USB : USB Host for storage
USB Audio Input or Output
WiFi : WiFi 6E
WiFi bands : 2.4 GHz, 5 GHz, and 6 GHz
WiFi standard : 802.11 b/g/n/ax
Bluetooth : Bluetooth 5.3
Bluetooth profiles : BLE, A2DP Rx/Tx, AVRCP, HID
LE Audio : Supported via software update
Bluetooth input : Stream from compatible phones, tablets, TVs, and laptops
Bluetooth output : Output to compatible Bluetooth speakers, headphones, or earphones, where supported
Wired network behavior : Ethernet available for a stable wired network connection