Just found the owners manual for the JBL Bar 1000.
It looks like the charging process for the detachable speakers is the same:
6.2.1 Charge by docking the detachable speakers
Charging starts when you dock the detachable speakers onto
the soundbar.
When the soundbar switches to standby mode, turns on;
turns off when the detachable speakers are fully charged. (So does this mean to charge the speakers the soundbar MUST be in standby so you can't charge them while it's switched on a you're watching the telly? Is this the same on the Bar 9.1?)
It takes about 3.5 hours for the empty battery to be fully
charged.
6.2.2 Charge through a USB cable
USB-C
• Use a USB-C cable to connect the detachable speakers to
power respectively.
• For the detachable speakers, the status indicator is used
for status indication of both battery power and wireless
connection (See “3.2 Detachable speakers”).
NOTES:
– * The USB-C cable is sold separately
The bit you probably all want:
General specification:
• Model: BAR 1000 (soundbar unit)
BAR 1000 SURROUND (detachable speaker)
BAR 1000 SUB (subwoofer unit)
• Sound system: 7.1.4 channel
• Power supply: 100 - 240V AC, ~ 50/60Hz
• Total speaker power output (Max
@THD 1%): 880W
• Soundbar output power (Max
@THD 1%): 440W
• Surround speaker output power(Max
@THD 1%): 2x 70W
• Subwoofer output power (Max.
@THD 1%): 300 W
• Soundbar transducer: 5x (46x90)mm racetrack drivers,
3x 0.75” (20mm) tweeters, 2x 2.75” (70mm) up-firing full-
range drivers
• Surround speaker transducer: 0.75” (20mm) tweeters,
2.75” (70mm) up-firing full-range drivers
• Subwoofer transducer: 10” (260mm)
• Networked standby power: < 2.0 W
• Operating temperature: 0°C - 45°C
• Lithium battery: 3.635V, 3283mAh
HDMI specification:
• HDMI video input: 3
• HDMI video output (with Enhanced Audio Return Channel,
eARC): 1
• HDMI HDCP version: 2.3
• HDR pass through: HDR10, Dolby Vision
Audio specification:
• Frequency response: 33Hz - 20kHz (-6dB)
• Audio inputs: 1 Optical, Bluetooth, USB (USB playback is
available in US version. For other versions, USB is for Service
only.)
USB specification:
• USB port: Type A
• USB rating: 5V DC, 0.5A
• Supporting file formats: mp3
• MP3 codec: MPEG 1 Layer 2/3, MPEG 2 Layer 3, MPEG
2.5 Layer 3
• MP3 sampling rate: 16 - 48 kHz
• MP3 bitrate: 80 - 320 kpbs
Wireless specification:
• Bluetooth version: 5.0
• Bluetooth profile: A2DP 1.2, AVRCP 1.5
• Bluetooth transmitter frequency range:
2400 MHz – 2483.5 MHz
• Bluetooth transmitter power: <15 dBm (EIRP)
• Wi-Fi network: IEEE 802.11 a/b/g/n/ac/ax (2.4GHz/5GHz)
• 2.4G Wi-Fi transmitter frequency range: 2412 - 2472 MHz
(2.4 GHz ISM Band, USA 11 Channels, Europe and others
13 Channels)
• 2.4G Wi-Fi transmitter power: <20 dBm (EIRP)
• 5G Wi-Fi transmitter frequency range:
5.15 - 5.35GHz, 5.725 - 5.825GHz
5G Wi-Fi transmitter power: 5.15 - 5.25GHz <23dBm,
5.25 - 5.35GHz <20dBm, 5.725 - 5.825GHz <14dBm (EIRP)
• 2.4G wireless transmitter frequency range: 2406 - 2474 MHz
• 2.4G wireless transmitter power: <10 dBm (EIRP)
Dimensions
• Total soundbar dimensions (W x H x D):
1194 x 56 x 125mm / 47” x 2.2” x 4.9”
• Main soundbar dimensions (W x H x D):
884 x 56 x 125 mm / 34.8” x 2.2” x 4.9”
• Detachable surround speaker dimensions (each) (W x H x D):
155 x 56 x 125 mm / 6.1” x 2.2” x 4.9”
• Subwoofer dimensions (W x H x D):
305 x 440.4 x 305 mm / 12” x 17.3” x 12”
• Soundbar weight: 3.72 kg / 8.2 lbs
• Detachable surround speaker weight (each): 1.4kg / 3.1 lbs
• Subwoofer weight: 10 kg / 22 lbs
• Packaging dimensions (W x H x D):
1000 x 375 x 475 mm / 39.4” x 14.8” x 18.7”
• Packaging Weight: 19.4 kg / 42.7 lbs