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install a 9V(6F22)battery
quickly double-tap and hold the headset touch area for 5 seconds
Body material: 201 stainless steel
The high-current amplifier protection circuit allows up to 6 pairs of speakers to be connected without damaging the amplifier
Standby Current: 45mA
DEMUDA DC-80 Car Battery Charger 12V/24V Intelligent Pulse Repair Type Lead-acid Battery, AU Plug, US Plug, EU Plug, JP Plug, UK Plug Color:Red install a 9V(6F22)battery1. Using high and low frequency pulse technology, one key repair, activate the battery. 2. Three speed current selection: fast and slow charging: 4A 6A 8A 3. Intelligent digital display, intelligent detection: it can display voltage, current, and charging process during charging, allowing you to detect the battery charging status in real time. 4. Smart chip, full of automatic stop. Three stage charging: constant current mode + constant voltage mode +