Product model：M28Speaker power：32 ohm-0.0015 mW*2 true copper ringSpeaker specification：8mm*2Bluetooth version：JL 6983/5.1 versionBluetooth distance：10-12 metersProduct size：45mm*18mm*24mmHeadset battery：50mAhProduct weight：98gCharging case battery: 2000mAhCharging case size:85mm*55mm*30mmPlay time: 6HCall time: 5HHeadset charging time: 1HCharging time of charging case: 1HFunction operation: Dual mode dual decodingGame/music mode can be switched at will, allowing you to have a better on-site experience