For Galaxy Tab A 8.4 (2020) T307 PC + Silicone Shockproof Combination Case with 360 Degree Rotating Holder & Handle(Black) Type-iPhone 11 Pro Parts it can restrain the noise

it can restrain the noise efficiently

Carton Size 30cm * 20cm * 30cm / 11

40HQ: 880 cartons * 40 pcs = 35200 pcs

it will sound the alarm and immediately send a notification to your smartphone---When Smoke Alarm work with Multifunctional Gateway (CA1001) together

Power DC 12V 3

For Galaxy Tab A 8.4 (2020) T307 PC + Silicone Shockproof Combination Case with 360 Degree Rotating Holder & Handle(Black) Type-iPhone 11 Pro Parts it can restrain the noise1. Simple and easy, comfortable, easy to carry. 2. Unique design with a handle, can be used for support. 3. Provide a full protection from dust, shock, scratches and bumps and other daily damage. 4. All buttons and ports are easy to access. 5. With good performance and high quality material, it may work for a long time.