Active Noise Cancelling Bluetooth Headset - ACEFAST H7

Product name: H7 active noise cancellation bluetooth headset Bluetooth Name: ACEFAST H7 ANC Model No: H7 Bluetooth version: V5.4 Transmission distance: 10 metres Music time: >55 hours (BT)/ >45 hours (BT+ANC)*60% Talk time at volume: 40H*60% Charging time at volume: approx. 1.5 hours Headset Battery: 500mAh/1.85Wh/3.7V Frequency Response Curve: 20Hz~20KHz Speaker size: Φ30mm Waterproof rating: IP54 Overall size: about 175 x 69 x 205 mm Weight: approx. 167g Input: 5V/0.5A Operating frequency range: 2402-2480MHzRF Output power: ≤10dBm Noise reduction depth: -35dB Lightweight Design: 166g weight, about 100g less than Over ear style headphones, zero burden for long time wearing.Increased comfort, allowing for a more ergonomic headband design and a gentle hold, Increased durability, so you can wear them for longer periods of time. Active Noise Cancellation (ANC): Four Marks True Mixed Feedback Noise Cancellation Through excellent structural design and professional noise cancellation tuning, the flat-ear headset can also achieve noise cancellation. -35dB Active Noise Cancellation (ANC) technology, the ambient sound is instantly quieted down after switching on. Noise cancellation on/transparent/noise cancellation off, three modes can be switched at will. Switching to the transparent mode, the headphones will accurately pick up the external sound and naturally blend into the surrounding environment, enjoying the music while paying attention to the changes in the surrounding environment, so that important information will not be missed, and security is more reliable. Earmuffs: Flat ear design, not cover your ears, more breathable, can be worn for a long time Selected high-density skin-friendly protein leather earmuffs cotton, locking the sound does not leak out, wearing a more snug fit to the ear, thus forming a closed sound field; combined with the top noise reduction tuning algorithms, you do not have to wrap your ears can also feel the noise reduction effect The ear cups are filled with high resilience memory foam, which is soft, comfortable and fits well. There are ventilation holes on the ear cups. One is for better sound output to the ears; the other is to let the ears breathable Earmuffs are removable. Convenient to replace the ear cups with different colours Sound quality: Adopting light weight, high sensitivity 30mm professional HiFi grade moving coil loud speakers, accurately presenting the details of high-resolution music; Speakers using ultra-light PU + PEEK double-layer composite material diaphragm, combined with a centre hole N45 high-performance magnets, so that the speaker sound quality is more balanced, sensitivity as high as 112dB, the small size also has a big energy, headphones of the small steel cannon. Batteries: 500mAh high-capacity battery, long life, one charge per week; {according to 8 hours of use in a day} Music time 55 hours (ANC off) / 45 hours (ANC / pass-through mode) {@60% volume} Talk time 40 hours {@60% volume} Charge for 10 minutes, use for 2 hours {60% volume} Charging time: approx. 1.5 hours full