1、2.5 inch large-size LCD screen, larger size, clearer display, allowing you to see more clearly under outdoor lighting. 2、The sound of 0‑9 number keys can be switched freely, which is convenient for users to use, and it is more convenient to switch music. 3、Built‑in 100W loudspeaker, the sound can reach 200dB, can be extended more than 3km. 4、Support two kinds of sounds playing at the same time, with mixing function. 5、Back up DC12 power supply and vehicle power supply. Easy to use and carry around. Item Type: Hunting Bird Caller Material: ABS Plastic Color: Army Green Product Size: Approx. 92.5 x 92.5 x 59mm / 3.6 x 3.6 x 2.3in Weight: Approx. 969g / 34.2oz 1.▶||: To play/pause, press the play button once, and press the pause button again. 2.||◀◀: Short press to play the previous song, long press to quickly select a song, stop pressing your favorite song and play it. 3.▶▶||: Short press to play the next song, long press to quickly select a song, stop pressing your favorite song and play it. 4. OK button: Select any song, press OK button to play. 5.-: Short press to decrease the volume, long press to continuously decrease the volume. 6.+: Short press to increase the volume by one level, long press to increase the volume continuously. 7. Number keys: Select a song. 8.0: Long press for three seconds to enter the contrast adjustment, then press + - to adjust the contrast, and then press the OK key to confirm. 1 x Storage bag 1 x Player 1 x Power Cable 1 x Strap Buckle 1 x USB Charging Cable 1 x Manual