What’s in the Box: 1 × BaoFeng UV-5R 8W Radio 1 × 3800mAh Li-ion Battery 1 × 1800mAh Li-ion Battery 1 × Programming Cable 1 × RH-771 High Gain Antenna 1 × Original Antenna 1 × Hand Microphone 1 × Power Adapter 1 × Earpiece 1 × Belt Clip 1 × Hand Strap 1 × User's manual Your Concern Can you use a MAC to program it?Download CHIRP to program this. It works fine on a Mac.Does it come with all the antennas shown in the picture?The box contains all the accessories in the picture, including two different antennas, RH-771 High Gain antenna, original antenna.Do i need to program it before to operate the product?Yes, but it does come with cables and software otherwise there is a downloadable software that works reall y well. Is this really 8 watt output? I was under the impression this model was 4 watts? Yes, I checked this with a bird meter and a 20 watt 2 meter slug and on high output it has 7.3 watts of power. Technical Specifications 128 Channels Battery Saver Time-out Timer Keypad Lock Monitor Channel ROGER BEEP 1750Hz Brust Tone 25KHz/12.5KHz Switchable Emergency & Low Battery Alert LED Flashlight & Large LCD Display Operating Voltage:DC 7.4V Desktop charger input:100~240V Frequency Stability:±2.5ppm BAOFENG UV-5R 8W The New Generation UV-5R The UV-5R 8W is a dual-band handheld radio updated from the traditional UV-5R. Improving transmit power to 8 watts (upgraded to a new chipset). Has 3 different output levels (1W/4W/8W). Also compatible with all accessories from the traditional package. The best value package ever for you! Adding more accessories to the package: 1 × 3800mAh Li-ion Battery 1 × Programming Cable 1 × Hand Microphone 1 × RH-771 High Gain Antenna 1800mAh + 3800mAh Li-ion Batteries Two rechargeable Lithium-ion batteries, get the second standby battery in the charger while you are using the radio, ensures 24 hours of non-stop communication, and solve the problem of battery shortage. Original Antenna + RH-771 High Gain Antenna Triband: 2m-1.25m-70cm; Gain (relative): +2.15dBi; Watts: up to 10 Watts; Length: 17.7 inches; Connector: SMA Female. Compatible with all BaoFeng Radios - Ideal for UV-5R. Baofeng Programming Cable The programming cable uses CH340 Chipset which is widely compatible with various walkie-talkie models, you can use it to connect with most walkie-talkies with a 2-pin connector. Hand Held Microphone Built-in LED indicator light, PTT button, and microphone, the cable can extend to up to 30 cm, very convenient to use. 360°rotating clip on the back gives flexible wearing. Functions Dual Band 2-Way Radio Dual-Band Display, Dual Freq. Display, Dual-Standby, makes it more efficient. Squelch Level 0-9 grades help you suppress background noise, provide better signal and sound clarity. VOX Function Achieves transmission activated by your voice, do not need to press PTT to talk. Channel Scan You can scan the active channels in your group in case you don't know which frequency to join in. Keypad Lock Avoid unintended keypad input when during use to avoid quitting a connection by accident. 128 channels/50 CTCSS/104 DCS The CTCSS/DCS sub-tones can extend the channel usage and filter the unexpected signals.