One of the challenges facing TWS earplug manufacturers is size and weight: to meet the user's comfort requirements, the earplugs must be small and light. But each tws earbud factory earbud needs to have its own energy source to power the Bluetooth® radio, audio processing circuitry and speakers. The smaller and lighter the battery, the less energy it can store.

　　Today, typical TWS earbuds from tws earbuds factory have a battery capacity of 25-35 mAh. This capacity value is very limited: by comparison, a typical smartphone has a battery capacity of 3000 mAh.

　　Proximity sensors help reduce the rate at which the earbud's small battery drains by detecting when the tws earbuds factory earbud is removed from the ear. However, the sensor itself also consumes energy, most of which comes from the infrared transmitter. Fortunately, earbud designers have the following two technical options to limit the power consumption of the sensor.

　　Normally, the proximity sensor in the tws earbuds factory TWS earbuds is configured to: trigger the detection signal when the object (i.e. the user's ear socket) is within 3mm, and trigger the release signal when the nearest object is beyond 10mm.