The Bird Caller is mainly used by downloading a variety of birds voices to play for decoy birds and hunting. 

Features: 
Download a variety of birds voices to play for decoy birds and hunting. 
With timer OFF and ON function， and can set a specified track sound. 
Rotary volume adjustment switch， concise operating. 
Built-in heatsink and high temperature resistant， suitable for long-term use in the outdoor environment of high temperature. 
Sealed design， use in the desert areas， can prevent sand entering into. 
Connect 2pcs max 50W speakers， max sound work up to 150dB. 

Specifications: 
Power: 12~24V 
Music format: MP3 / WMA 
Host size: 11 * 4.5 * 2.5cm / 4.3 * 1.8 * 1.0in 
Host weight: 52g / 1.8oz 
Speaker diameter: 10cm / 3.9in 
Speaker weight: 403g / 14.2oz (each) 
Carry Case size: 27 * 23 * 8cm / 10.6 * 9.1 * 3.1in 
Total weight: 1390g / 3.06lb 

Package List: 
1 * Host 
2 * Speaker 
1 * Storage Battery Cable 
1 * USB Cable 
1 * Carry Case