HUAWEI FreeBuds SE 4 ANC, Black

True wireless in-ear headphones with active noise cancellation averaging 24 dB across the full frequency range and up to 50 hours of playback time with the charging case when ANC is disabled. Key benefits at a glance Active noise cancellation with an average reduction of 24 dB across the full frequency range Long battery life of up to 50 hours with the charging case when ANC is disabled Fast charging with 4 hours of playback after 10 minutes of charging Bluetooth 5.4 for stable wireless connections Dust and splash resistant design SGS-certified and tested in 26 rigorous durability tests Lightweight design at 4.3 g per individual earbud Active noise cancellation These earbuds feature active noise cancellation with an average reduction of 24 dB across the full frequency range. This value represents the full-range noise reduction depth specified by the manufacturer for the ANC system. The ANC function can be enabled or disabled, affecting playback time depending on the operating mode. Battery and playback time With ANC disabled, the system delivers up to 50 hours of playback when using the charging case. With ANC enabled, playback time with the charging case is 10 hours. The earbuds alone provide 7 hours of playback with ANC disabled and also 7 hours with ANC enabled. On a single full charge without the case, the device offers 10 hours of playback with ANC disabled and 7 hours with ANC enabled. Fast charging provides 4 hours of playback after just 10 minutes of charging. Durability and testing The earbuds feature a dust and splash resistant design. Additionally, the product holds SGS certification. The manufacturer states that 26 rigorous durability tests were passed, including an insertion-and-removal test with 8,000 cycles, a switch durability test with 40,000 cycles, and a removing-and-returning test with 10,000 cycles. A drop test from a height of 1.8 meters was also completed. Temperature tests include a thermal shock test at –40 ℃ and +70 ℃, a temperature cycle test at –20 ℃ and +55 ℃, and a high/low-temperature storage test at –40 ℃ and +70 ℃. Connectivity and comfort Wireless connectivity is provided via Bluetooth 5.4. The true wireless stereo system consists of two earbuds, each weighing 4.3 g. For comfort, ear tips in three sizes are included to ensure a secure fit for different ear canals. Scope of delivery HUAWEI FreeBuds SE 4 ANC Charging case Ear tips in three sizes Technical specifications Active noise cancellation (reduction depth): 24 dB average across the full frequency range Bluetooth version: 5.4 Weight (individual earbud): 4.3 g Ear tip sizes: three sizes Battery life (ANC disabled, with charging case): 50 hours playback Battery life (ANC enabled, with charging case): 10 hours playback Battery life (ANC disabled, earbuds only): 7 hours Battery life (ANC enabled, earbuds only): 7 hours Battery life (ANC disabled, single charge): 10 hours playback Battery life (ANC enabled, single charge): 7 hours Fast charging (10 minutes): 4 hours playback Protection rating: Dust and splash resistant Certification: SGS Number of passed durability tests: 26 Durability test insertion/removal: 8,000 × Durability test switch: 40,000 × Durability test removing/returning: 10,000 × Drop test: 1.8 m Thermal shock test: –40 ℃ / +70 ℃ Temperature cycle test: –20 ℃ / +55 ℃ High/low-temperature storage test: –40 ℃ / +70 ℃