Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: UHF Long Range Walkie Talkie Set - 3 to 5 KM Range, Calling Function
Product description: De la marque High-Tech Place votre produit vous offrira une qualite irreprochable ! UHF Long Range Walkie Talkie Set is great for two people to communicate while separated as it has a 3 to 5KM Range as well as featuring Calling Function. Keep in constant contact with regular updates by using this conveniently size walkie talkie set. This walkie talkie set is idea for long range, therefore backpackers, explorers, construction site works and security guards will benefits from the 3 to 5 kilometer distance range that is offered. Storing up to 128 channels, this walkie talkie is ideal for multiple people to use plus it has a variety of functions including Call, CTCSS/DCS, Alarm, and Group Program function to make this walkie talkie set more practical. This walkie talkie set uses UHF (Ultra High Frequency) and it ranges between 400 to 469.995MHz therefore, these two-way radio walkie talkies long range voice communication devices that allow you to keep in contact with different people, when all are connected on the same frequency. The walkie talkie design is simple to use with display and push-button keys as well as having built-in a rechargeable ni battery, which provides 3 hours of constant use. The built-in batteries in these walkie talkies can be recharged by using the including battery charging dock and power adapters. A torch is conveniently located at the top of the walkie talkie so it lets you see in dark environments such as at night or in an alley, which is perfect when trying to find a door's keyhole with limited light. This Long Rang Walkie Talkie Set is in stock and can be dispatched within 1 working day with a 12 month warranty. Brought to you by the leader in wholesale security gadgets, High-Tech Place. At a Glance... Long Range Walkie Talkie Set 3 to 5km Range
Product feature: UHF Long Range Walkie Talkie Set - 3 to 5 KM Range, Calling Function
Product brand: SN
Target attributes: Number of Channels
Answer: attribute: number of channels
value: 128 channels
source: product description