Product description: 
1. Lighter BT can connect cell phone through Bluetooth and can perform the function of speedometer through AceSoft APP. 
2. Lighter BT supports green and red tracers. 
3. For installation, the barrel cannot be too long. The barrel cannot exceed 12 mm from the foremost end of the thread. Otherwise, the barrel will block the infrared sensor of Lighter BT and BB tracers will not be induced. 
4. Lighter BT should be installed on BB gun. By no means can your eyes directly look into the muzzle, to avoid accident due to erroneous operation or BB gun failure or erroneous shooting

Specifications: 
*Support green and red tracers. 
*Support 35PRS running fire speed. 

(초당 35발 측정 가능)
*Built-in li-Poly battery with charge time of 2 hours 

(배터리 충전 시간은 약 2시간)
*Charging once can provide the shooting of 30000 tracers. 

(한 번 충전으로 약 30,000발 발사 가능)
*LED power and electricity quantity display 
*FCC, CE, ROHS 
*Size: diameter 34.5 mm, length 100.5 mm 
*Weight: 78 g 
*Accessories: 

● 1 MicroUSB charging cable (충전 케이블)
● 1 manual (설명서)
● One M11 clockwise thread adapter/and one M14 counter-clockwise thread adapter (11mm 시계방향 나사산 아답터 / 14mm 역나사 아답터)