"1. Material: ABS; Transmission protocol: Bluetooth 5.2; Transmission distance: about 15m-20m (forward); Battery: 60mAh; Battery life: about 4 hours; 2. Product size: 62*12*28mm (receiver); 43*28*5mm (transmitter) 3. Noise reduction: built-in noise reduction algorithm; mute: with mute effect (switched by a single button); reverberation: with reverberation sound effect (double-click the button to switch) 4. Built-in intelligent noise reduction, clear sound quality 5. Automatic pairing, plug and play"
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